{"id":"S85001307","label":"Aeronautical charts","description":"Here are entered maps giving information intended for use in air navigation, such as compass rose, isogonic lines, location of landing fields, beacons, hazards to air navigation, etc.","source_url":"https://id.loc.gov/authorities/subjects/sh85001307","normalized_label":"aeronautical charts","broader":["http://id.loc.gov/authorities/subjects/sh85002542","http://id.loc.gov/authorities/subjects/sh85003006","http://id.loc.gov/authorities/subjects/sh85080858","http://id.loc.gov/authorities/subjects/sh85090433"],"aliases":["Aeronautics--Charts, diagrams, etc.","Charts, Aeronautical"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85001307","provider":"lcsh","revision":"6e9e680bb88d191b","taxonomy_revision":"f050b5d4780b1289","title":"Aeronautical charts","url":"/topics/S85001307","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"900873857102381572","address_version":"morton4x16-v1","coordinates":[0,20,17425,27648],"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}