Utilize the input text as a context reference, choose the right relationship between EU and European Union 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.

With Greece due to pay the European Central Bank 3.5 billion euros ($3.9 billion) next Monday, ministers are looking at whether they could recycle interest payments already made by Greece to euro-zone central banks, tap a fund managed by all 28 European Union governments, give Greece more time to pay, or organize bilateral loans from individual EU governments.

Answer: operator