{"id":"S85127189","label":"Stability of helicopters","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85127189","normalized_label":"stability of helicopters","broader":["http://id.loc.gov/authorities/subjects/sh85001295"],"aliases":["Helicopters--Stability"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85127189","provider":"lcsh","revision":"5f20d179047dd46f","taxonomy_revision":"f050b5d4780b1289","title":"Stability of helicopters","url":"/topics/S85127189","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"867022386304778752","address_version":"morton4x16-v1","coordinates":[0,20,19392,21504],"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}