What is the relationship between Mobily and Saudi Arabia 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.

Abu Dhabi inched up 0.1 percent, although heavyweight telecommunications firm Etisalat fell 1.4 percent after posting a 40-percent drop in second-quarter profit, citing its Saudi Arabia affiliate Mobily and currency losses.

Answer: headquarters_location