... data base is freely available as a MongoDBdatabase, which can easily be interfaced with usingAPIs in various programming languages. For infor-mation about how to obtain the database, please ... 13,724hierarchal relations. For example, if A immediatelydominates B and B immediately dominates C, then the set of valid organizational dominance relationsare A dominates B, B dominates C and A domi-nates ... 619,446 emailstaken from folders of 158 employees of the Enroncorporation. We created a database of organizationalhierarchy relations by studying the original Enronorganizational charts. We...