hotwater_cases = [
    {'original_description': 'Community scheme', 'heater_type': None, 'system_type': 'community scheme',
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Community scheme with CHP', 'heater_type': None, 'system_type': 'community scheme',
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': 'chp', 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Community scheme, no cylinder thermostat', 'heater_type': None,
     'system_type': 'community scheme', 'thermostat_characteristics': 'no cylinder thermostat',
     'heating_scope': None, 'energy_recovery': None, 'tariff_type': None, 'extra_features': None,
     'chp_systems': None, 'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Community scheme, plus solar', 'heater_type': None, 'system_type': 'community scheme',
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': 'plus solar', 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Community scheme, waste water heat recovery', 'heater_type': None,
     'system_type': 'community scheme', 'thermostat_characteristics': None, 'heating_scope': None,
     'energy_recovery': 'waste water heat recovery', 'tariff_type': None, 'extra_features': None,
     'chp_systems': None, 'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Electric heat pump for water heating only', 'heater_type': 'electric heat pump',
     'system_type': None, 'thermostat_characteristics': None, 'heating_scope': 'water heating only',
     'energy_recovery': None, 'tariff_type': None, 'extra_features': None, 'chp_systems': None,
     'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Electric heat pump for water heating only, no cylinder thermostat',
     'heater_type': 'electric heat pump', 'system_type': None, 'thermostat_characteristics': 'no cylinder thermostat',
     'heating_scope': 'water heating only', 'energy_recovery': None, 'tariff_type': None, 'extra_features': None,
     'chp_systems': None, 'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Electric immersion, off-peak', 'heater_type': 'electric immersion', 'system_type': None,
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': 'off-peak',
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Electric immersion, off-peak, plus solar', 'heater_type': 'electric immersion',
     'system_type': None, 'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': 'off-peak', 'extra_features': 'plus solar', 'chp_systems': None, 'distribution_system': None,
     'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Electric immersion, standard tariff', 'heater_type': 'electric immersion',
     'system_type': None, 'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': 'standard tariff', 'extra_features': None, 'chp_systems': None, 'distribution_system': None,
     'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Electric immersion, standard tariff, flue gas heat recovery',
     'heater_type': 'electric immersion', 'system_type': None, 'thermostat_characteristics': None,
     'heating_scope': None, 'energy_recovery': 'flue gas heat recovery', 'tariff_type': 'standard tariff',
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Electric immersion, standard tariff, plus solar', 'heater_type': 'electric immersion',
     'system_type': None, 'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': 'standard tariff', 'extra_features': 'plus solar', 'chp_systems': None, 'distribution_system': None,
     'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Electric immersion, standard tariff, waste water heat recovery',
     'heater_type': 'electric immersion', 'system_type': None, 'thermostat_characteristics': None,
     'heating_scope': None, 'energy_recovery': 'waste water heat recovery', 'tariff_type': 'standard tariff',
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Electric instantaneous at point of use', 'heater_type': 'electric instantaneous',
     'system_type': None, 'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': None, 'extra_features': None, 'chp_systems': None, 'distribution_system': None,
     'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Electric instantaneous at point of use, waste water heat recovery',
     'heater_type': 'electric instantaneous', 'system_type': None, 'thermostat_characteristics': None,
     'heating_scope': None, 'energy_recovery': 'waste water heat recovery', 'tariff_type': None, 'extra_features': None,
     'chp_systems': None, 'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'From main system', 'heater_type': None, 'system_type': 'from main system',
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'From main system, flue gas heat recovery', 'heater_type': None,
     'system_type': 'from main system', 'thermostat_characteristics': None, 'heating_scope': None,
     'energy_recovery': 'flue gas heat recovery', 'tariff_type': None, 'extra_features': None,
     'chp_systems': None, 'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'From main system, no cylinder thermostat', 'heater_type': None,
     'system_type': 'from main system', 'thermostat_characteristics': 'no cylinder thermostat', 'heating_scope': None,
     'energy_recovery': None, 'tariff_type': None, 'extra_features': None, 'chp_systems': None,
     'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'From main system, plus solar', 'heater_type': None, 'system_type': 'from main system',
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': 'plus solar', 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'From main system, plus solar, waste water heat recovery', 'heater_type': None,
     'system_type': 'from main system', 'thermostat_characteristics': None, 'heating_scope': None,
     'energy_recovery': 'waste water heat recovery', 'tariff_type': None, 'extra_features': 'plus solar',
     'chp_systems': None, 'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'From main system, waste water heat recovery', 'heater_type': None,
     'system_type': 'from main system', 'thermostat_characteristics': None, 'heating_scope': None,
     'energy_recovery': 'waste water heat recovery', 'tariff_type': None, 'extra_features': None, 'chp_systems': None,
     'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'From secondary system', 'heater_type': None, 'system_type': 'from secondary system',
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'From secondary system, no cylinder thermostat', 'heater_type': None,
     'system_type': 'from secondary system', 'thermostat_characteristics': 'no cylinder thermostat',
     'heating_scope': None, 'energy_recovery': None, 'tariff_type': None, 'extra_features': None,
     'chp_systems': None, 'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Gas boiler/circulator', 'heater_type': 'gas boiler', 'system_type': None,
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': 'circulator', 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Gas boiler/circulator, no cylinder thermostat', 'heater_type': 'gas boiler',
     'system_type': None, 'thermostat_characteristics': 'no cylinder thermostat', 'heating_scope': None,
     'energy_recovery': None, 'tariff_type': None, 'extra_features': None, 'chp_systems': None,
     'distribution_system': 'circulator', 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Gas instantaneous at point of use', 'heater_type': 'gas instantaneous',
     'system_type': None, 'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': None, 'extra_features': None, 'chp_systems': None, 'distribution_system': None,
     'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Gas multipoint', 'heater_type': 'gas multipoint', 'system_type': None,
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Heat pump, waste water heat recovery', 'heater_type': 'heat pump', 'system_type': None,
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': 'waste water heat recovery',
     'tariff_type': None, 'extra_features': None, 'chp_systems': None, 'distribution_system': None,
     'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'No system present: electric immersion assumed', 'heater_type': 'electric immersion',
     'system_type': None, 'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': None, 'extra_features': None, 'chp_systems': None, 'distribution_system': None,
     'no_system_present': 'no system present', 'assumed': True, "appliance": None},
    {'original_description': 'Gas range cooker', 'heater_type': None, 'system_type': None,
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": "gas range cooker"},
    {'original_description': 'From second main heating system', 'heater_type': None,
     'system_type': 'from secondary system',
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'OGÇÖr brif system', 'heater_type': None, 'system_type': 'from main system',
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Oil boiler/circulator', 'heater_type': 'oil boiler', 'system_type': None,
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': 'circulator', 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Solid fuel range cooker', 'heater_type': 'solid fuel range cooker', 'system_type': None,
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'OGÇÖr brif system, dim thermostat ar y silindr', 'heater_type': None,
     'system_type': 'from main system', 'thermostat_characteristics': 'no cylinder thermostat', 'heating_scope': None,
     'energy_recovery': None, 'tariff_type': None, 'extra_features': None, 'chp_systems': None,
     'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Twymwr tanddwr, an-frig', 'heater_type': 'electric immersion', 'system_type': None,
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': 'off-peak',
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'OGÇÖr brif system, gydag ynniGÇÖr haul', 'heater_type': None,
     'system_type': 'from main system',
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': 'plus solar', 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Twymwr tanddwr, tarriff safonol', 'heater_type': 'electric immersion',
     'system_type': None, 'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': 'standard tariff', 'extra_features': None, 'chp_systems': None, 'distribution_system': None,
     'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Trydan ar unwaith yn y fan lle maeGÇÖn cael ei ddefnyddio',
     'heater_type': 'electric instantaneous',
     'system_type': None, 'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': None, 'extra_features': None, 'chp_systems': None, 'distribution_system': None,
     'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'O gynllun cymunedol', 'heater_type': None, 'system_type': 'community scheme',
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': "O'r brif system", 'heater_type': None, 'system_type': 'from main system',
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': "Trydan ar unwaith yn y fan lle mae'n cael ei ddefnyddio",
     'heater_type': 'electric instantaneous',
     'system_type': None, 'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': None, 'extra_features': None, 'chp_systems': None, 'distribution_system': None,
     'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Oil range cooker', 'heater_type': None, 'system_type': None,
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": "oil range cooker"},
    {'original_description': 'Oil range cooker, no cylinder thermostat', 'heater_type': None, 'system_type': None,
     'thermostat_characteristics': 'no cylinder thermostat', 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": "oil range cooker"},
    {'original_description': 'Popty estynedig olew, dim thermostat ar y silindr', 'heater_type': None,
     'system_type': None,
     'thermostat_characteristics': 'no cylinder thermostat', 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": "oil range cooker"},
    {'original_description': 'Cynllun cymunedol', 'heater_type': None, 'system_type': 'community scheme',
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Nwy wrth fwy nag un pwynt', 'heater_type': 'gas multipoint', 'system_type': None,
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None, 'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": None},
    {'original_description': 'Oil range cooker', 'heater_type': None, 'system_type': None,
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": "oil range cooker"},
    {'original_description': 'Popty estynedig olew', 'heater_type': None, 'system_type': None,
     'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': None,
     'extra_features': None, 'chp_systems': None, 'distribution_system': None, 'no_system_present': None,
     'assumed': False, "appliance": "oil range cooker"},
    {'original_description': 'Dim system ar gael: rhagdybir bod twymwr tanddwr trydan',
     'heater_type': 'electric immersion',
     'system_type': None, 'thermostat_characteristics': None, 'heating_scope': None, 'energy_recovery': None,
     'tariff_type': None, 'extra_features': None, 'chp_systems': None, 'distribution_system': None,
     'no_system_present': 'no system present', 'assumed': True, "appliance": None},
    {'original_description': "O'r brif system, dim thermostat ar y silindr", 'heater_type': None,
     'system_type': 'from main system', 'thermostat_characteristics': 'no cylinder thermostat', 'heating_scope': None,
     'energy_recovery': None, 'tariff_type': None, 'extra_features': None, 'chp_systems': None,
     'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Trydan ar unwaith yn y fan lle maeGÇÖn cael ei ddefnyddio, adfer gwres d+¦r gwastraff',
     'heater_type': 'electric instantaneous', 'system_type': None, 'thermostat_characteristics': None,
     'heating_scope': None, 'energy_recovery': 'waste water heat recovery', 'tariff_type': None, 'extra_features': None,
     'chp_systems': None, 'distribution_system': None, 'no_system_present': None, 'assumed': False, "appliance": None},
    {'original_description': 'Electric multipoint', 'heater_type': 'electric multipoint', 'system_type': None,
     'thermostat_characteristics': None,
     'heating_scope': None, 'energy_recovery': None, 'tariff_type': None, 'extra_features': None, 'chp_systems': None,
     'distribution_system': None, 'no_system_present': None, 'appliance': None, 'assumed': False},
    {'original_description': 'Single-point gas water heater, standard tariff',
     'heater_type': 'single-point gas', 'system_type': "water heater", 'thermostat_characteristics': None,
     'heating_scope': None, 'energy_recovery': None, 'tariff_type': 'standard tariff', 'extra_features': None,
     'chp_systems': None, 'distribution_system': None, 'no_system_present': None, 'appliance': None, "assumed": False
     }

]
