{"id":"S2005006448","label":"Jet engines--Combustion chambers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2005006448","normalized_label":"jet engines--combustion chambers","broader":["http://id.loc.gov/authorities/subjects/sh85028837"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2005006448","provider":"lcsh","revision":"1d646da89c1deba5","taxonomy_revision":"f050b5d4780b1289","title":"Jet engines--Combustion chambers","url":"/topics/S2005006448","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9799837489568031268","address_version":"morton4x16-v1","coordinates":[0,478,2017,49152],"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}