Utilize the input text as a context reference, choose the right relationship between 'Eurogroup' and 'Jeroen Dijsselbloem' from the options.
Options: chairperson, stock exchange, subsidiary, position held

1619 - The head of the Eurogroup Jeroen Dijsselbloem said he was "certain" there would be problems with Greece in the years to come after the euro zone's bailout fund decided to open talks with Greece on a third bailout programme.
chairperson