What is the relationship between SABMiller and beer in the context of the input sentence. Choose an answer from: 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.

However IBISWorld says the increasing dominance of the two largest beer breweries is a growing concern for smaller, less competitive craft breweries, especially those that compete against Lion and SABMiller to secure tap beer deals in pubs and bars.

Answer: product_or_material_produced