{"code":0,"system_type":"new_const","meaning":"no"}
{"code":1,"system_type":"new_const","meaning":"yes"}
{"code":1,"system_type":"sewer_type","meaning":"none"}
{"code":2,"system_type":"sewer_type","meaning":"private"}
{"code":3,"system_type":"sewer_type","meaning":"public"}
{"code":0,"system_type":"central_air","meaning":"no"}
{"code":1,"system_type":"central_air","meaning":"yes"}
{"code":2,"system_type":"fuel_type","meaning":"gas"}
{"code":3,"system_type":"fuel_type","meaning":"electric"}
{"code":4,"system_type":"fuel_type","meaning":"oil"}
{"code":2,"system_type":"heat_type","meaning":"hot air"}
{"code":3,"system_type":"heat_type","meaning":"hot water"}
{"code":4,"system_type":"heat_type","meaning":"electric"}