{"id":"S85090209","label":"Natural bridges","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85090209","normalized_label":"natural bridges","broader":["http://id.loc.gov/authorities/subjects/sh85074366","http://id.loc.gov/authorities/subjects/sh85090245"],"aliases":["Arches, Natural","Bridges, Natural","Karst bridge","Natural arches"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85090209","provider":"lcsh","revision":"564a2b75c8c23059","taxonomy_revision":"f050b5d4780b1289","title":"Natural bridges","url":"/topics/S85090209","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9511681595095270976","address_version":"morton4x16-v1","coordinates":[0,20,18814,33792],"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}