Complex sentence: The predominantly Biher-Tigrinya populated urban centers in Eritrea are the capital Asmara, Mendefera, Dekemhare, Adi Keyh, Adi Quala and Senafe, while there is a significant population of Biher-Tigrinya in other cities including Keren, and Massawa.
Split into simpler sentences: The predominantly Biher-Tigrinya populated urban centers in Eritrea are the capital Asmara, Mendefera, Dekemhare, Adi Keyh, Adi Quala and Senafe. There is also a significant population of Biher-Tigrinya in other cities including Keren and Massawa.