What is the relationship between Sanofi and Regeneron Pharmaceuticals 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.

LONDON, July 24 (Reuters) - A new type of cholesterol drug from Sanofi and Regeneron Pharmaceuticals won a green light from European regulators on Friday, two months behind a rival product from Amgen.

Answer: owner_of