{"id":"S89001743","label":"Ammonium perchlorate","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh89001743","normalized_label":"ammonium perchlorate","broader":["http://id.loc.gov/authorities/subjects/sh85004551","http://id.loc.gov/authorities/subjects/sh89001746"],"aliases":["AP (Chemical)","APC (Chemical)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh89001743","provider":"lcsh","revision":"3efad227b3cb51e6","taxonomy_revision":"f050b5d4780b1289","title":"Ammonium perchlorate","url":"/topics/S89001743","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"57640797579134466","address_version":"morton4x16-v1","coordinates":[0,21,14396,15360],"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}