Utilize the input text as a context reference, choose the right relationship between Bouygues Telecom and Bouygues 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.

Bouygues Telecom is part of the group, the Bouygues group.

Answer: parent_organization