{"id":"S00006064","label":"Hydrogen content","description":"Use as a topical subdivision under individual materials and types of materials.","source_url":"https://id.loc.gov/authorities/subjects/sh00006064","normalized_label":"hydrogen content","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh00006064","provider":"lcsh","revision":"be155f40ea6f8f81","taxonomy_revision":"f050b5d4780b1289","title":"Hydrogen content","url":"/topics/S00006064","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9799832789225587776","address_version":"morton4x16-v1","coordinates":[0,0,94,49152],"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}