Utilize the input text as a context reference, choose the right relationship between Jeff Bezos and Chief Executive Officer 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.

Chief Executive Officer Jeff Bezos is pushing the Web retailer, which he founded two decades ago, beyond sales of books, electronics and household items as the business matures.

Answer: position_held