{"id":"S2002011136","label":"Shock tunnels","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2002011136","normalized_label":"shock tunnels","broader":["http://id.loc.gov/authorities/subjects/sh85063719","http://id.loc.gov/authorities/subjects/sh85121714"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2002011136","provider":"lcsh","revision":"82a2de41d6e2f4b4","taxonomy_revision":"f050b5d4780b1289","title":"Shock tunnels","url":"/topics/S2002011136","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"289356302399185410","address_version":"morton4x16-v1","coordinates":[0,477,20752,0],"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}