{"aspect_id":"AS38","aspect_name":"speed","aspect_reference":null,"aspect_symbol":"v","name":"speed mile per minute","scale_id":"SC1074","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":"v mi.min-1","unit_id":"UN1115","unit_name":"mile per minute","unit_reference":null,"unit_symbol":"mi.min-1"}