{"id":"S85139579","label":"Underground construction","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85139579","normalized_label":"underground construction","broader":["http://id.loc.gov/authorities/subjects/sh85017693","http://id.loc.gov/authorities/subjects/sh85040505","http://id.loc.gov/authorities/subjects/sh85139576"],"aliases":["Building, Underground","Subsurface construction","Subterranean construction","Underground structures"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85139579","provider":"lcsh","revision":"0f008d07354833a5","taxonomy_revision":"f050b5d4780b1289","title":"Underground construction","url":"/topics/S85139579","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10124316263774814724","address_version":"morton4x16-v1","coordinates":[0,20,19585,60416],"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}