Utilize the input text as a context reference, choose the right relationship between Airbnb and Brian Chesky 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.

Airbnb chief Brian Chesky was willing to sell a 10 per cent stake in his company for $150,000 in 2008 - it is now valued at around $US25b.

Answer: founded_by