http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.disit.org/km4city/schema#DeviceAttribute
http://www.disit.org/km4city/schema#data_type
integer
http://www.disit.org/km4city/schema#value_type
http://www.disit.org/km4city/resource/value_type/car_park_free_places
http://www.disit.org/km4city/schema#value_name
freeParkingLots
http://www.disit.org/km4city/schema#value_unit
#
http://www.disit.org/km4city/schema#value_refresh_rate
900
http://www.disit.org/km4city/schema#healthiness_criteria
refresh_rate