{"id":"S85090022","label":"National Measurement System for Time and Frequency","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85090022","normalized_label":"national measurement system for time and frequency","broader":["http://id.loc.gov/authorities/subjects/sh85051935","http://id.loc.gov/authorities/subjects/sh85135397","http://id.loc.gov/authorities/subjects/sh85145969"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85090022","provider":"lcsh","revision":"25fe52ac0c14f6f0","taxonomy_revision":"f050b5d4780b1289","title":"National Measurement System for Time and Frequency","url":"/topics/S85090022","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9514065336304288324","address_version":"morton4x16-v1","coordinates":[0,20,18811,38912],"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}