{"id":"S85101191","label":"Photographic optics","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85101191","normalized_label":"photographic optics","broader":[],"aliases":["Optics, Photographic"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85101191","provider":"lcsh","revision":"3dd34d080d7eafde","taxonomy_revision":"f050b5d4780b1289","title":"Photographic optics","url":"/topics/S85101191","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290702353173201472","address_version":"morton4x16-v1","coordinates":[0,20,18986,7168],"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}