Complex sentence: The Isle of Wight, known to the ancient Romans as Vectis, is a county and the largest island of England, located in the English Channel, on average about off the coast of Hampshire, separated from mainland Great Britain by a strait called the Solent.
Split into simpler sentences: The Isle of Wight, known to the ancient Romans as Vectis, is a county and the largest island of England, located in the English Channel. It is about off the coast of Hampshire and is separated from mainland Great Britain by a strait called the Solent.