{"id":"S85006476","label":"Arc-jet rocket engines--Fuel systems","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85006476","normalized_label":"arc-jet rocket engines--fuel systems","broader":["http://id.loc.gov/authorities/subjects/sh85052224"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85006476","provider":"lcsh","revision":"670eb1d713053777","taxonomy_revision":"f050b5d4780b1289","title":"Arc-jet rocket engines--Fuel systems","url":"/topics/S85006476","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326515371102306880","address_version":"morton4x16-v1","coordinates":[0,20,17506,12288],"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}