Utilize the input text as a context reference, choose the right relationship between 'Facebook' and 'Mark Zuckerberg' from the options.
Options: currency, founded by, chairperson, distribution format

After Facebook Inc. tested a Snapchat-like live events feature at the Lollapalooza music festival last week, Mark Zuckerberg has now set his sights on Periscope and Meerkat.
founded by