Utilize the input text as a context reference, choose the right relationship between Facebook and Mark Zuckerberg 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.
Text: John Chambers, the chief executive of Cisco, may not be as recognisable a name as Mark Zuckerberg or Jack Dorsey of Twitter (Xetra: A1W6XZ - news ) , but when he took charge of the networking equipment giant in 1995 the future bosses of Twitter and Facebook (NasdaqGS: FB - news ) were still in school.
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