What is the relationship between British Gas and Centrica 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.

British Gas owner Centrica and Shell to slash more than 10,000 jobs amid energy slump British Gas owner Centrica and Shell to slash more than 10,000 jobs amid energy slump OIL giant Royal Dutch Shell and British Gas owner Centrica are planning to cut more than 10,000 jobs between them.

Answer: owned_by