Utilize the input text as a context reference, choose the right relationship between 'bwin' and 'sports betting' from the options.
Options: product/material produced, position held, publisher, owned by

Bwin, created by the merger of sports betting group bwin and online poker group PartyGaming in 2011, had a market value of about 816 million pounds as of Wednesday close, nearly triple that of GVC.
product/material produced