{"id":"S85113309","label":"Retaining walls","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85113309","normalized_label":"retaining walls","broader":["http://id.loc.gov/authorities/subjects/sh85040505","http://id.loc.gov/authorities/subjects/sh85144957"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85113309","provider":"lcsh","revision":"cecc25650fc0e759","taxonomy_revision":"f050b5d4780b1289","title":"Retaining walls","url":"/topics/S85113309","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"903051166148068932","address_version":"morton4x16-v1","coordinates":[0,20,19175,29696],"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}