Complex sentence: Newark Liberty International Airport, originally Newark Metropolitan Airport and later Newark International Airport, is the primary airport serving the U.S. state of New Jersey, and is one of three major airports in the New York metropolitan area.
Split into simpler sentences: Newark Liberty International Airport, originally Newark Metropolitan Airport and later Newark International Airport, is the primary airport serving the U.S. state of New Jersey. Newark Airport is one of three of the major airports located in the New York metropolitan area.