{"id":"S85095148","label":"Optical illusions","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85095148","normalized_label":"optical illusions","broader":["http://id.loc.gov/authorities/subjects/sh85058489","http://id.loc.gov/authorities/subjects/sh85095188","http://id.loc.gov/authorities/subjects/sh85143926"],"aliases":["Illusions, Optical"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85095148","provider":"lcsh","revision":"2275555f2e79a295","taxonomy_revision":"f050b5d4780b1289","title":"Optical illusions","url":"/topics/S85095148","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9549953396904182340","address_version":"morton4x16-v1","coordinates":[0,20,18891,45056],"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}