{"id":"S85018791","label":"Calcium silicates","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85018791","normalized_label":"calcium silicates","broader":["http://id.loc.gov/authorities/subjects/sh2001000783","http://id.loc.gov/authorities/subjects/sh85122503"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85018791","provider":"lcsh","revision":"8b51fb95717cc91e","taxonomy_revision":"f050b5d4780b1289","title":"Calcium silicates","url":"/topics/S85018791","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9514008161632256576","address_version":"morton4x16-v1","coordinates":[0,20,17698,39936],"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}