What is the relationship between Waha Capital and Abu Dhabi 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.

Current Dunia shareholders include Fullerton Financial Holdings -- a wholly-owned subsidiary of Singapore sovereign investor Temasek Holdings -- as well as Abu Dhabi state investment firm Mubadala and private equity house Waha Capital .

Answer: headquarters_location