{"id":"S2012002711","label":"Four-stroke cycle engines--Fluid dynamics","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2012002711","normalized_label":"four-stroke cycle engines--fluid dynamics","broader":["http://id.loc.gov/authorities/subjects/sh85049376"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2012002711","provider":"lcsh","revision":"37c27154341abaa8","taxonomy_revision":"f050b5d4780b1289","title":"Four-stroke cycle engines--Fluid dynamics","url":"/topics/S2012002711","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5209688687725651554","address_version":"morton4x16-v1","coordinates":[0,479,45798,23552],"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}