Complex sentence: The World Expo 2005, also known as Aichi Expo was held near Nagoya in the neighboring cities of Nagakute and Seto from March 25 to September 25,2005.
Split into simpler sentences: The World Expo 2005, also known as Aichi Expo was held just outside of Nagoya in the neighboring cities of Nagakute and Seto. The event was held from March 25 to September 25,2005.