{"id":"S00009555","label":"Butterfly valves","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh00009555","normalized_label":"butterfly valves","broader":["http://id.loc.gov/authorities/subjects/sh85141944"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh00009555","provider":"lcsh","revision":"d0d88da342f4cb92","taxonomy_revision":"f050b5d4780b1289","title":"Butterfly valves","url":"/topics/S00009555","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"576610286958806020","address_version":"morton4x16-v1","coordinates":[0,0,149,19456],"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}