{"id":"S85083947","label":"Meson factories","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85083947","normalized_label":"meson factories","broader":["http://id.loc.gov/authorities/subjects/sh85077169"],"aliases":["B facilities (Nuclear physics)","B factories (Nuclear physics)","Facilities, Meson","Factories, Meson","Meson facilities"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85083947","provider":"lcsh","revision":"f46fa6fab342522d","taxonomy_revision":"f050b5d4780b1289","title":"Meson factories","url":"/topics/S85083947","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9547851129531287040","address_version":"morton4x16-v1","coordinates":[0,20,18716,44032],"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}