{"id":"S2012001054","label":"Helium as a test gas","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2012001054","normalized_label":"helium as a test gas","broader":["http://id.loc.gov/authorities/subjects/sh2003009081"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2012001054","provider":"lcsh","revision":"bb97aef9682e415a","taxonomy_revision":"f050b5d4780b1289","title":"Helium as a test gas","url":"/topics/S2012001054","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5245708688647415330","address_version":"morton4x16-v1","coordinates":[0,479,45772,30720],"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}