{"aspect_id":"AS3","aspect_name":"length","aspect_reference":null,"aspect_symbol":null,"name":"length chain (U.S. survey foot)","scale_id":"SC987","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":"None ch","unit_id":"UN1028","unit_name":"chain (U.S. survey foot)","unit_reference":null,"unit_symbol":"ch"}