What is the relationship between Whopper and Burger King 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.

And Burger King just in the last couple of weeks transitioned from a 2 for $6 to the 2 for $5 with the Whopper and the OCS being the primary drivers, and we're seeing significant response to that.

Answer: manufacturer