{"id":"S85112547","label":"Relief valves","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85112547","normalized_label":"relief valves","broader":["http://id.loc.gov/authorities/subjects/sh85141944"],"aliases":["Blowoff valves","Pressure relief valves","Safety relief valves","Safety valves"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85112547","provider":"lcsh","revision":"351c7e6cac1cd64c","taxonomy_revision":"f050b5d4780b1289","title":"Relief valves","url":"/topics/S85112547","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9511822591351210564","address_version":"morton4x16-v1","coordinates":[0,20,19163,35840],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}