{"id":"S00003834","label":"Mars (Planet)--Volcanism","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh00003834","normalized_label":"mars (planet)--volcanism","broader":["http://id.loc.gov/authorities/subjects/sh85081556","http://id.loc.gov/authorities/subjects/sh99011716"],"aliases":["Martian volcanism"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh00003834","provider":"lcsh","revision":"64cba79b7b7664f2","taxonomy_revision":"f050b5d4780b1289","title":"Mars (Planet)--Volcanism","url":"/topics/S00003834","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9836002323669991492","address_version":"morton4x16-v1","coordinates":[0,0,59,59392],"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}