Utilize the input text as a context reference, choose the right relationship between Balfour Beatty and construction from the options. Options: 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