{"id":"S85128507","label":"Strategic Defense Initiative","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85128507","normalized_label":"strategic defense initiative","broader":["http://id.loc.gov/authorities/subjects/sh85011306"],"aliases":["SDI (Ballistic missile defense system)","Star Wars (Ballistic missile defense system)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85128507","provider":"lcsh","revision":"3ba1fe5ff9a20855","taxonomy_revision":"f050b5d4780b1289","title":"Strategic Defense Initiative","url":"/topics/S85128507","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10124312157853451776","address_version":"morton4x16-v1","coordinates":[0,20,19412,60416],"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}