Complex sentence: Amman is the base city for the international Arab Bank, one of the largest financial institutions in the Middle East, serving clients in more than 600 branches in 30 countries on five continents.
Split into simpler sentences: Amman is the base city for the international Arab Bank, which is one of the largest financial institutions in the Middle East. It serves clients in more than 600 branches in 30 countries on five continents.