What is the relationship between Bild and Berlin 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.

** Berlin is wooing private investors including Macquarie and JP Morgan to take a stake in its much-delayed new international airport, German newspaper Bild wrote on Sunday.

Answer: headquarters_location