{"id":"S85106571","label":"Prestressed concrete beams","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85106571","normalized_label":"prestressed concrete beams","broader":["http://id.loc.gov/authorities/subjects/sh85030699"],"aliases":["Beams, Prestressed concrete"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85106571","provider":"lcsh","revision":"dc744a8b1c57e6df","taxonomy_revision":"f050b5d4780b1289","title":"Prestressed concrete beams","url":"/topics/S85106571","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"324479350445852224","address_version":"morton4x16-v1","coordinates":[0,20,19070,11264],"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}