{"id":"S91005038","label":"Methyl ethyl ketone","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh91005038","normalized_label":"methyl ethyl ketone","broader":["http://id.loc.gov/authorities/subjects/sh85072095","http://id.loc.gov/authorities/subjects/sh87001687"],"aliases":["Butanone","Ethyl methyl ketone"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh91005038","provider":"lcsh","revision":"366460c70d5883e1","taxonomy_revision":"f050b5d4780b1289","title":"Methyl ethyl ketone","url":"/topics/S91005038","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"13892619963971273222","address_version":"morton4x16-v1","coordinates":[0,21,45697,47104],"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}