Analyze the relationship between 'Bangkok Airways' and 'Bangkok' within the context of the input sentence.
Options: business division, headquarters location, platform, distribution format

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.
headquarters location