{"id":"S85057456","label":"Ground-effect machines","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85057456","normalized_label":"ground-effect machines","broader":["http://id.loc.gov/authorities/subjects/sh85049596","http://id.loc.gov/authorities/subjects/sh85057455"],"aliases":["Air-bearing vehicles","Air-cushion vehicles","Ground pressure vehicles, Minimum","Ground proximity machines","Hovercraft"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85057456","provider":"lcsh","revision":"a30f4ce63edf5bc4","taxonomy_revision":"f050b5d4780b1289","title":"Ground-effect machines","url":"/topics/S85057456","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10088067855485912640","address_version":"morton4x16-v1","coordinates":[0,20,18302,49152],"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}