{"id":"S85112446","label":"Reinforced concrete","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85112446","normalized_label":"reinforced concrete","broader":["http://id.loc.gov/authorities/subjects/sh85017740","http://id.loc.gov/authorities/subjects/sh85030647"],"aliases":["Ferrocement","Structural concrete"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85112446","provider":"lcsh","revision":"0448e9c6204f5006","taxonomy_revision":"f050b5d4780b1289","title":"Reinforced concrete","url":"/topics/S85112446","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10126555144394260996","address_version":"morton4x16-v1","coordinates":[0,20,19161,63488],"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}