Complex sentence: North Hunterdon High School competes in the Skyland Conference, which includes public and parochial high schools covering Hunterdon County, Somerset County and Warren County in west Central Jersey, operating under the jurisdiction of the New Jersey State Interscholastic Athletic Association (NJSIAA).
Split into simpler sentences: North Hunterdon High School competes in the Skyland Conference, which includes public and parochial high schools covering Hunterdon County, Somerset County and Warren County in west Central Jersey. The conference operates under the jurisdiction of the New Jersey State Interscholastic Athletic Association (NJSIAA).