{"id":"S2007001664","label":"Photodegradation","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2007001664","normalized_label":"photodegradation","broader":["http://id.loc.gov/authorities/subjects/sh85036221","http://id.loc.gov/authorities/subjects/sh85101143"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2007001664","provider":"lcsh","revision":"4269b77fba98f765","taxonomy_revision":"f050b5d4780b1289","title":"Photodegradation","url":"/topics/S2007001664","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4611686045845709348","address_version":"morton4x16-v1","coordinates":[0,478,33193,0],"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}