Utilize the input text as a context reference, choose the right relationship between 'Wynn Resorts' and 'casino' from the options.
Options: creator, business division, product/material produced, chief executive officer

Wynn Resorts Ltd. fell on an analyst’s report from Asia that a junket group operating out of the company’s Macau casino may have lost as much as HK$2 billion ($258 million) to thievery.
product/material produced