{"id":"S85046516","label":"Express highways--Airspace utilization","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85046516","normalized_label":"express highways--airspace utilization","broader":["http://id.loc.gov/authorities/subjects/sh85114513"],"aliases":["Airspace over highways","Freeway airspace utilization"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85046516","provider":"lcsh","revision":"17bab0ed19063945","taxonomy_revision":"f050b5d4780b1289","title":"Express highways--Airspace utilization","url":"/topics/S85046516","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10090319639189258820","address_version":"morton4x16-v1","coordinates":[0,20,18131,53248],"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}