{"id":"S2005003358","label":"Optical fiber communication","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2005003358","normalized_label":"optical fiber communication","broader":["http://id.loc.gov/authorities/subjects/sh85095142"],"aliases":["Fiber optic telecommunication","Fiber-optic communication"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2005003358","provider":"lcsh","revision":"f7c29278bbb61128","taxonomy_revision":"f050b5d4780b1289","title":"Optical fiber communication","url":"/topics/S2005003358","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"614886786967413284","address_version":"morton4x16-v1","coordinates":[0,478,1969,30720],"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}