What is the relationship between Nimrod MRA4 and BAE Systems 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.
Text: Since scrapping the delayed and over-budget BAE Systems Nimrod MRA4 in 2010, experts say Britain has struggled to carry out aerial hunts for submarines and objects on the surface.
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