{"id":"S85117177","label":"Sand and gravel plants","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85117177","normalized_label":"sand and gravel plants","broader":["http://id.loc.gov/authorities/subjects/sh85046823"],"aliases":["Gravel plants","Sand plants"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85117177","provider":"lcsh","revision":"ccc3317d7d4e3536","taxonomy_revision":"f050b5d4780b1289","title":"Sand and gravel plants","url":"/topics/S85117177","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10124171419228176964","address_version":"morton4x16-v1","coordinates":[0,20,19235,58368],"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}