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.

The joint venture began in 2004, and was reconfigured in 2008 for a 10-year term as the companies sought to counter the dominance in the region of SABMiller Plc, which controls more than 90 percent of the South African beer market.

Answer: product_or_material_produced