{"id":"S85063419","label":"Hydrogen--Isotopes","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85063419","normalized_label":"hydrogen--isotopes","broader":[],"aliases":["Heavy hydrogen"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85063419","provider":"lcsh","revision":"734a1cf9989926c2","taxonomy_revision":"f050b5d4780b1289","title":"Hydrogen--Isotopes","url":"/topics/S85063419","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10124246187155800644","address_version":"morton4x16-v1","coordinates":[0,20,18395,60416],"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}