{"id":"S97002951","label":"Mt-class (Steam locomotives)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh97002951","normalized_label":"mt-class (steam locomotives)","broader":["http://id.loc.gov/authorities/subjects/sh95009086"],"aliases":["Class Mt (Steam locomotives)","Mt (Locomotive)","Southern Pacific Mountain Class (Steam locomotives)","Southern Pacific Mountains (Steam locomotives)","Southern Pacific Mt-Class (Steam locomotives)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh97002951","provider":"lcsh","revision":"7e6a21669fa3744c","taxonomy_revision":"f050b5d4780b1289","title":"Mt-class (Steam locomotives)","url":"/topics/S97002951","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"20415732978681446","address_version":"morton4x16-v1","coordinates":[0,23,8343,7168],"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}