{"id":"S2012002460","label":"Spark ignition engines--Fluid dynamics","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2012002460","normalized_label":"spark ignition engines--fluid dynamics","broader":["http://id.loc.gov/authorities/subjects/sh85049376"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2012002460","provider":"lcsh","revision":"8c7f41f1100f21ad","taxonomy_revision":"f050b5d4780b1289","title":"Spark ignition engines--Fluid dynamics","url":"/topics/S2012002460","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5245567951163236962","address_version":"morton4x16-v1","coordinates":[0,479,45794,28672],"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}