{"id":"S85104606","label":"Polycyclic aromatic hydrocarbons","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85104606","normalized_label":"polycyclic aromatic hydrocarbons","broader":["http://id.loc.gov/authorities/subjects/sh85063372","http://id.loc.gov/authorities/subjects/sh88003550"],"aliases":["Benzenoid hydrocarbons","PAHs (Chemicals)","Polyarenes","Polynuclear aromatic hydrocarbons"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85104606","provider":"lcsh","revision":"e8c6fb9f7d6f80d4","taxonomy_revision":"f050b5d4780b1289","title":"Polycyclic aromatic hydrocarbons","url":"/topics/S85104606","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"903183106465744452","address_version":"morton4x16-v1","coordinates":[0,20,19039,30720],"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}