{"id":"S98007959","label":"Hydrogen buses","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh98007959","normalized_label":"hydrogen buses","broader":["http://id.loc.gov/authorities/subjects/sh85018245"],"aliases":["Hydrogen-powered buses"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh98007959","provider":"lcsh","revision":"c47e623004ae9fca","taxonomy_revision":"f050b5d4780b1289","title":"Hydrogen buses","url":"/topics/S98007959","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"868293146872792674","address_version":"morton4x16-v1","coordinates":[0,23,24046,23552],"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}