What is the relationship between Amazon Prime and Amazon 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.

"Look at your spending, and if you're somebody who shops at Amazon regularly and is already an Amazon Prime member, then it might be worth considering this card because you'd essentially be getting cash back for something that you're already doing."

Answer: owned_by