What is the relationship between Balfour Beatty and construction 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.

Balfour Beatty (Other OTC: BAFBF - news ) issued another profit warning, with pre-tax profit likely to be lower by between £120m to £150m due to problems discovered in various parts of the infrastructure construction group as part of a continuing business review.

Answer: industry