{"id":"S00005807","label":"Optical properties","description":"Use as a topical subdivision under individual chemicals and groups of chemicals and individual materials and types of materials.","source_url":"https://id.loc.gov/authorities/subjects/sh00005807","normalized_label":"optical properties","broader":["http://id.loc.gov/authorities/subjects/sh2008002816"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh00005807","provider":"lcsh","revision":"06dbf488b7da2453","taxonomy_revision":"f050b5d4780b1289","title":"Optical properties","url":"/topics/S00005807","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9261802167336190016","address_version":"morton4x16-v1","coordinates":[0,0,90,48128],"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}