Utilize the input text as a context reference, choose the right relationship between Eurogroup and Jeroen Dijsselbloem from the options. Options: 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.

Eurogroup chief Jeroen Dijsselbloem insisted on the need to build trust after six months of tortuous debt deal negotiations and a sudden referendum in which Greeks overwhelmingly rejected creditors' bailout terms.

Answer: chairperson