In the context of the input sentence, determine the relationship between 'Lafarge' and 'cement'.
Options: product/material produced, original broadcaster, developer, distribution format

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 .
product/material produced