What is the relationship between 'Saudia' and 'Riyadh' in the context of the input sentence.
Options: location of formation, director/manager, brand, platform

Some routes are densely trafficked; for example, Saudia has 12 flights daily between the capital, Riyadh and the country’s commercial center, Jeddah, and frequently uses Boeing 777s for the 90-minute hop.
location of formation