What is the relationship between Eurogroup and Jeroen Dijsselbloem in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

BRUSSELS, July 7 The Eurogroup of euro zone finance ministers will hold a conference call on Wednesday to discuss an expected Greek request for a medium-term loan from the European Stability Mechanism (ESM), Eurogroup chair Jeroen Dijsselbloem said.
chairperson