{"id":"S85081801","label":"Masers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85081801","normalized_label":"masers","broader":["http://id.loc.gov/authorities/subjects/sh85042184","http://id.loc.gov/authorities/subjects/sh85042239","http://id.loc.gov/authorities/subjects/sh85066327","http://id.loc.gov/authorities/subjects/sh85084952","http://id.loc.gov/authorities/subjects/sh85084958","http://id.loc.gov/authorities/subjects/sh85095162","http://id.loc.gov/authorities/subjects/sh85109460"],"aliases":["Microwave amplification by stimulated emission of radiation","Quantum mechanical amplifiers"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85081801","provider":"lcsh","revision":"aa508bd6f2fb8463","taxonomy_revision":"f050b5d4780b1289","title":"Masers","url":"/topics/S85081801","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"324338339153330756","address_version":"morton4x16-v1","coordinates":[0,20,18683,9216],"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}