{"id":"S85121546","label":"Ship propulsion","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85121546","normalized_label":"ship propulsion","broader":["http://id.loc.gov/authorities/subjects/sh2003010905","http://id.loc.gov/authorities/subjects/sh85081157","http://id.loc.gov/authorities/subjects/sh85081204"],"aliases":["Ships--Propulsion systems"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85121546","provider":"lcsh","revision":"480bb70f85439225","taxonomy_revision":"f050b5d4780b1289","title":"Ship propulsion","url":"/topics/S85121546","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"324470571532435968","address_version":"morton4x16-v1","coordinates":[0,20,19304,10240],"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}