Question: DVB Bank SE is part of which second largest bank in Germany by asset size and the central institution for more than 1,000 co-operative banks and their 12,000 branch offices?
Sentence (from "DZ Bank"): Within the Volksbanken Raiffeisenbanken Co-operative financial network, which is one of Germany's largest private sector financial service organisations, DZ Bank functions both as a central institution and as a corporate and investment bank.
Relevant evidence: No