What is the relationship between Jeff Bezos and Chief Executive Officer 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.

AP by Spencer Soper Amazon.com Chief Executive Officer Jeff Bezos envisions "millions" of people living in orbit as his exploration company, Blue Origin, and other commercial ventures develop spacecraft to make travel more widely available.

Answer: position_held