Complex sentence: Aven along with Stan Polovets and three fellow Russian Jewish billionaires, Mikhail Fridman, Alexander Knaster, and German Khan, founded the Genesis Philanthropy Group whose purpose is to develop and enhance Jewish identity among Russian-speaking Jews worldwide.
Split into simpler sentences: Aven along with Stan Polovets and fellow Russian Jewish billionaires-Fridman, Alexander Knaster, and German Khan, founded the Genesis Philanthropy Group (GPG). The organization's purpose is to develop and enhance Jewish identity among Russian-speaking Jews worldwide.