{"id":"S2001008494","label":"Polyphenylene oxide","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2001008494","normalized_label":"polyphenylene oxide","broader":["http://id.loc.gov/authorities/subjects/sh2001002942","http://id.loc.gov/authorities/subjects/sh85134811"],"aliases":["PPO (Chemical)","Polydimethylphenyl ether"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2001008494","provider":"lcsh","revision":"f0264a922494517b","taxonomy_revision":"f050b5d4780b1289","title":"Polyphenylene oxide","url":"/topics/S2001008494","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9262919573442029062","address_version":"morton4x16-v1","coordinates":[0,477,5085,47104],"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}