{"id":"S86002005","label":"Gyrotrons","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh86002005","normalized_label":"gyrotrons","broader":["http://id.loc.gov/authorities/subjects/sh85084973"],"aliases":["Cyclotron resonance masers"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh86002005","provider":"lcsh","revision":"8ad12ba86ebb8dfd","taxonomy_revision":"f050b5d4780b1289","title":"Gyrotrons","url":"/topics/S86002005","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5190407383821714948","address_version":"morton4x16-v1","coordinates":[0,20,33061,21504],"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}