{"id":"S2008000977","label":"Nuclear submarines--Accidents--Soviet Union","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2008000977","normalized_label":"nuclear submarines--accidents--soviet union","broader":[],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2008000977","provider":"lcsh","revision":"6d04762ea7d1b12c","taxonomy_revision":"f050b5d4780b1289","title":"Nuclear submarines--Accidents--Soviet Union","url":"/topics/S2008000977","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5207370917147190884","address_version":"morton4x16-v1","coordinates":[0,478,48807,17408],"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}