What is the relationship between CapitaLand and Singapore 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.

Keppel DC REIT and CapitaLand Mall Trust are both flat, after the former announced dividends for the third quarter and the latter said it sold a Singapore mall property.

Answer: headquarters_location