What is the relationship between Lafarge and cement 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.

MANILA, July 22 (Reuters) - Aboitiz Equity Ventures Inc said it will invest 24 billion pesos ($531 million) in the cement business after formalising a deal with Irish cement maker CRH Plc (NYSE: CRH - news ) to buy the Philippine assets of Lafarge SA .

Answer: product_or_material_produced