Complex sentence: Greenville is the county seat and the most populous city of Pitt County, North Carolina, United States principal city of the Greenville metropolitan area, and the 10th-most populous city in the U.S. state of North Carolina.
Split into simpler sentences: Greenville is the county seat and the most populous city of Pitt County, North Carolina, United States. The principal city of the Greenville metropolitan area, and the 10th-most populous city in the U.S. state of North Carolina.