{"id":"S85063422","label":"Hydrogen as fuel","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85063422","normalized_label":"hydrogen as fuel","broader":["http://id.loc.gov/authorities/subjects/sh85052213"],"aliases":["Hydrogen energy"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85063422","provider":"lcsh","revision":"a937fec8a0e47bfd","taxonomy_revision":"f050b5d4780b1289","title":"Hydrogen as fuel","url":"/topics/S85063422","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10126489190876463684","address_version":"morton4x16-v1","coordinates":[0,20,18395,63488],"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}