What is the relationship between Polyus and Gold 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.

Russia's Polyus Gold was up over 2.2 percent while London-listed Randgold Resources and Anglo American were up near 1 percent.

Answer: product_or_material_produced