{"id":"S85030655","label":"Concrete--Cracking","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85030655","normalized_label":"concrete--cracking","broader":["http://id.loc.gov/authorities/subjects/sh85030660"],"aliases":["Cracking of concrete"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85030655","provider":"lcsh","revision":"55588c1edb456c44","taxonomy_revision":"f050b5d4780b1289","title":"Concrete--Cracking","url":"/topics/S85030655","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10126497712091578948","address_version":"morton4x16-v1","coordinates":[0,20,17883,64512],"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}