What is the relationship between Telefónica and GVT in the context of the input sentence. Choose an answer from: 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.

PARIS—Vivendi SA on Wednesday reported a rise in second-quarter net profit, boosted by a windfall from the sale of its Brazilian telecom unit GVT to Telefónica SA.

Answer: owner_of