Utilize the input text as a context reference, choose the right relationship between Lafarge and cement 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.

Birla Group on Monday said it was acquiring the cement business of Lafarge India for Rs.5,000 crore through a combination of internal accruals and fresh debt to add another 5.5 million tonnes in annual capacity.

Answer: product_or_material_produced