{"id":"S88005424","label":"Synthetic hard materials","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh88005424","normalized_label":"synthetic hard materials","broader":["http://id.loc.gov/authorities/subjects/sh85058869","http://id.loc.gov/authorities/subjects/sh85131669"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh88005424","provider":"lcsh","revision":"71612c77521cdda9","taxonomy_revision":"f050b5d4780b1289","title":"Synthetic hard materials","url":"/topics/S88005424","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14718960143027029504","address_version":"morton4x16-v1","coordinates":[0,20,64364,49152],"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}