{"id":"S85030669","label":"Concrete--Fatigue","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85030669","normalized_label":"concrete--fatigue","broader":["http://id.loc.gov/authorities/subjects/sh85030690"],"aliases":["Fatigue of concrete"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85030669","provider":"lcsh","revision":"03b66c115d3bf48f","taxonomy_revision":"f050b5d4780b1289","title":"Concrete--Fatigue","url":"/topics/S85030669","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326524185445025280","address_version":"morton4x16-v1","coordinates":[0,20,17884,13312],"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}