What is the relationship between CRH and London Stock Exchange 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.

201.50p +0.95% Shire Plc (Xetra: S7E.DE - news ) (SHP) 5,345.00p +0.85% Barratt Developments (LSE: BDEV.L - news ) (BDEV) 652.00p +0.77% CRH (CRH (NYSE: CRH - news ) ) 1,954.00p +0.67% Meggitt (MGGT) 507.50p +0.59% Carnival (CCL) 3,504.00p +0.55% London Stock Exchange Group (LSE) 2,578.00p +0.47% Direct Line Insurance Group (DLG) 385.70p +0.42% Hargreaves Lansdown (LSE: HL.L - news ) (HL.)

Answer: stock_exchange