{"id":"S85063718","label":"Hypersonic planes","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85063718","normalized_label":"hypersonic planes","broader":["http://id.loc.gov/authorities/subjects/sh85001296","http://id.loc.gov/authorities/subjects/sh85002782","http://id.loc.gov/authorities/subjects/sh85060742"],"aliases":["Hypersonic aircraft","Planes, Hypersonic"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85063718","provider":"lcsh","revision":"c65067c3379a4907","taxonomy_revision":"f050b5d4780b1289","title":"Hypersonic planes","url":"/topics/S85063718","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9513999641557991936","address_version":"morton4x16-v1","coordinates":[0,20,18400,38912],"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}