Utilize the input text as a context reference, choose the right relationship between Genzyme and Sanofi 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.

Now, you may not be aware but Sanofi actually has quite a bit of experience with the AAV platform going back to our Genzyme heritage.

Answer: owned_by