{"id":"S98003343","label":"Rotary combustion engines","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh98003343","normalized_label":"rotary combustion engines","broader":["http://id.loc.gov/authorities/subjects/sh85067314"],"aliases":["Rotary engines (Internal combustion engines)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh98003343","provider":"lcsh","revision":"5a9e356d970306a8","taxonomy_revision":"f050b5d4780b1289","title":"Rotary combustion engines","url":"/topics/S98003343","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"327861191521207906","address_version":"morton4x16-v1","coordinates":[0,23,23974,15360],"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}