Utilize the input text as a context reference, choose the right relationship between FedEx and TNT 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.

European regulators extended their investigation of the FedEx Corp. FDX 0.74 % purchase of TNT NV until January 2016.

Answer: owner_of