{"id":"S85063411","label":"Hydrofluoric acid","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85063411","normalized_label":"hydrofluoric acid","broader":["http://id.loc.gov/authorities/subjects/sh85000536","http://id.loc.gov/authorities/subjects/sh85049431"],"aliases":["Fluorhydric acid","Fluoric acid","Fluorohydric acid"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85063411","provider":"lcsh","revision":"23a283f8ece5e987","taxonomy_revision":"f050b5d4780b1289","title":"Hydrofluoric acid","url":"/topics/S85063411","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10088217390136836676","address_version":"morton4x16-v1","coordinates":[0,20,18395,52224],"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}