{"id":"S91005564","label":"Blocks (Group theory)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh91005564","normalized_label":"blocks (group theory)","broader":["http://id.loc.gov/authorities/subjects/sh85112944"],"aliases":["Block theory (Group theory)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh91005564","provider":"lcsh","revision":"2f240b32ea67c3d1","taxonomy_revision":"f050b5d4780b1289","title":"Blocks (Group theory)","url":"/topics/S91005564","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14468939978786357766","address_version":"morton4x16-v1","coordinates":[0,21,45705,61440],"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}