Utilize the input text as a context reference, choose the right relationship between CapitaLand and Singapore from the options. Options: 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