{"id":"S2001004834","label":"Gasoline vapor control","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2001004834","normalized_label":"gasoline vapor control","broader":["http://id.loc.gov/authorities/subjects/sh96004918"],"aliases":["Control of gasoline vapor"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2001004834","provider":"lcsh","revision":"9fedb98a9815f47e","taxonomy_revision":"f050b5d4780b1289","title":"Gasoline vapor control","url":"/topics/S2001004834","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9224638976546186754","address_version":"morton4x16-v1","coordinates":[0,477,5028,34816],"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}