Utilize the input text as a context reference, choose the right relationship between Interxion and data center 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.

In early July, Interxion announced the opening of the first phase of MRS3, its third data center in Marseille.

Answer: industry