{"id":"S2007002420","label":"Retaining walls--Design and construction","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2007002420","normalized_label":"retaining walls--design and construction","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2007002420","provider":"lcsh","revision":"ab05c892fd5db2b8","taxonomy_revision":"f050b5d4780b1289","title":"Retaining walls--Design and construction","url":"/topics/S2007002420","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14413770634817840672","address_version":"morton4x16-v1","coordinates":[0,478,33204,53248],"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}