What is the relationship between MoneyGram and DALLAS 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.

DALLAS (July 7, 2015) (GLOBE NEWSWIRE) -- MoneyGram ( MGI ) will announce its second quarter 2015 financial results on Friday, July 31, 2015.

Answer: headquarters_location