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.

ACCRA, GHANA - 5 August 2015 - Emirates, a global connector of people and places, has today announced a new codeshare agreement with Thailand-based Bangkok Airways, a regional boutique airline, which is set to open up new destinations for Bangkok Airways and Emirates passengers from Europe, Australasia and South-East Asia regions.

Answer: headquarters_location: Bangkok Airways, Bangkok