Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: 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.

Mashreq 's VR reflects the bank's underlying weak, but improving, asset quality and consequent vulnerability to event risk and potentially large losses, through sizeable loan concentrations and renegotiated loan book, particularly to Dubai GRE exposures.

Answer: headquarters_location: Mashreq, Dubai