{"id":"S91002778","label":"Cyclobutadiene","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh91002778","normalized_label":"cyclobutadiene","broader":["http://id.loc.gov/authorities/subjects/sh00000392","http://id.loc.gov/authorities/subjects/sh85018350"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh91002778","provider":"lcsh","revision":"44ef46c28e173b01","taxonomy_revision":"f050b5d4780b1289","title":"Cyclobutadiene","url":"/topics/S91002778","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5243456878599882306","address_version":"morton4x16-v1","coordinates":[0,21,45662,26624],"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}