What is the relationship between Lafarge and LafargeHolcim 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.

LafargeHolcim said it will present the financial results of Lafarge and Holcim as standalone companies for the first half of this year on July 29 adding the first combined interim results of the new group will be presented for the three quarters of 2015.

Answer: parent_organization