{"id":"S2008108674","label":"Optical instruments--Design and construction--Congresses","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2008108674","normalized_label":"optical instruments--design and construction--congresses","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2008108674","provider":"lcsh","revision":"95b7e2c45e86867a","taxonomy_revision":"f050b5d4780b1289","title":"Optical instruments--Design and construction--Congresses","url":"/topics/S2008108674","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4900061556458807904","address_version":"morton4x16-v1","coordinates":[0,478,50490,2048],"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}