Complex sentence: Millburn High School is a four-year public high school serving students in ninth through twelfth grades in Millburn, in Essex County, New Jersey, United States, operating as the lone secondary school of the Millburn Township Public Schools.
Split into simpler sentences: Millburn High School is a four-year public high school serving students in ninth through twelfth grades in Millburn, Essex County, New Jersey, in the United States. It operates as the lone secondary school of the Millburn Township Public Schools.