{"id":"S88003028","label":"Blackboard systems (Computer programs)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh88003028","normalized_label":"blackboard systems (computer programs)","broader":["http://id.loc.gov/authorities/subjects/sh97000493"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh88003028","provider":"lcsh","revision":"f57dfc487869638d","taxonomy_revision":"f050b5d4780b1289","title":"Blackboard systems (Computer programs)","url":"/topics/S88003028","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5497839905981728324","address_version":"morton4x16-v1","coordinates":[0,20,64327,20480],"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}