Complex sentence: Bolgatanga, colloquially known as "Bolga", is the capital of both the Bolgatanga Municipal District and the Upper East Region of Ghana, and it is the twenty-seventh most populous in terms of population, with a population of 66,685 people.
Split into simpler sentences: Bolgatanga, colloquially known as "Bolga", is a town and the capital of both the Bolgatanga Municipal District and the Upper East Region of Ghana. Bolgatanga is the twenty-seventh most populous settlement in Ghana, in terms of population, with a population of 66,685 people.