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.

Makamure says the product came out of the collaborative work done by the Cross Country Opaque Beer team at SABMiller Africa to improve the shelf stability and packaging of Chibuku.

Answer: product_or_material_produced