{"id":"S2003003408","label":"Prestressed concrete poles","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2003003408","normalized_label":"prestressed concrete poles","broader":["http://id.loc.gov/authorities/subjects/sh87001683"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2003003408","provider":"lcsh","revision":"45df9edf3d27e958","taxonomy_revision":"f050b5d4780b1289","title":"Prestressed concrete poles","url":"/topics/S2003003408","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5188221564939805186","address_version":"morton4x16-v1","coordinates":[0,477,36256,16384],"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}