{"id":"S85111454","label":"Rare earth metal catalysts","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85111454","normalized_label":"rare earth metal catalysts","broader":["http://id.loc.gov/authorities/subjects/sh85084039"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85111454","provider":"lcsh","revision":"d44b4da33ff10a3b","taxonomy_revision":"f050b5d4780b1289","title":"Rare earth metal catalysts","url":"/topics/S85111454","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"903183107539223104","address_version":"morton4x16-v1","coordinates":[0,20,19146,30720],"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}