{"id":"S85139487","label":"Ultrasonic transducers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85139487","normalized_label":"ultrasonic transducers","broader":["http://id.loc.gov/authorities/subjects/sh85042094","http://id.loc.gov/authorities/subjects/sh85139481"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85139487","provider":"lcsh","revision":"1a1dd97b2d59fcea","taxonomy_revision":"f050b5d4780b1289","title":"Ultrasonic transducers","url":"/topics/S85139487","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"903196026733724160","address_version":"morton4x16-v1","coordinates":[0,20,19584,31744],"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}