{"id":"S85114501","label":"Roads--Guard fences","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85114501","normalized_label":"roads--guard fences","broader":["http://id.loc.gov/authorities/subjects/sh85047778","http://id.loc.gov/authorities/subjects/sh85114488","http://id.loc.gov/authorities/subjects/sh85114514"],"aliases":["Guard fences (Roads)","Guardrails (Roads)","Guide rails (Roads)","Highway guard fences","Longitudinal barriers (Roads)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85114501","provider":"lcsh","revision":"ab1d85284b8e4b86","taxonomy_revision":"f050b5d4780b1289","title":"Roads--Guard fences","url":"/topics/S85114501","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290561616825958976","address_version":"morton4x16-v1","coordinates":[0,20,19194,5120],"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}