{"id":"S85114703","label":"Rocket engines","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85114703","normalized_label":"rocket engines","broader":[],"aliases":["Rocket motors","Rockets (Aeronautics)--Motors"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85114703","provider":"lcsh","revision":"67eca851a48de5dd","taxonomy_revision":"f050b5d4780b1289","title":"Rocket engines","url":"/topics/S85114703","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326731151333279236","address_version":"morton4x16-v1","coordinates":[0,20,19197,15360],"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}