Utilize the input text as a context reference, choose the right relationship between 'brewing' and 'beer' from the options.
Options: stock exchange, platform, product/material produced, director/manager

"Our big players, once a lot of the craft beer aspect of things become a lot more saturated in the industry, they may look towards new flavours, different ways of brewing beer, in order to attract the demand - a more different product than before."
product/material produced