{"id":"S91001245","label":"Soil vapor extraction","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh91001245","normalized_label":"soil vapor extraction","broader":["http://id.loc.gov/authorities/subjects/sh85046579","http://id.loc.gov/authorities/subjects/sh93000049"],"aliases":["SVE (Soil remediation)","Soil enhanced volatilization","Soil vacuum extraction","Soil venting","Soil volatilization"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh91001245","provider":"lcsh","revision":"25fcea0bc8eaaee9","taxonomy_revision":"f050b5d4780b1289","title":"Soil vapor extraction","url":"/topics/S91001245","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5245576737017955906","address_version":"morton4x16-v1","coordinates":[0,21,45638,29696],"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}