Utilize the input text as a context reference, choose the right relationship between 'Saudia' and 'Riyadh' from the options.
Options: platform, brand, director/manager, location of formation

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