{"id":"S2009008126","label":"Impact craters","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2009008126","normalized_label":"impact craters","broader":["http://id.loc.gov/authorities/subjects/sh85033778","http://id.loc.gov/authorities/subjects/sh85054117"],"aliases":["Astroblemes","Impact structures"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2009008126","provider":"lcsh","revision":"2a5e60d29b44a2ca","taxonomy_revision":"f050b5d4780b1289","title":"Impact craters","url":"/topics/S2009008126","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14757385592426096228","address_version":"morton4x16-v1","coordinates":[0,478,64543,63488],"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}