Complex sentence: The Rockport train wreck happened at Rockport, New Jersey in Mansfield Township just outside Hackettstown on June 16,1925 when a violent storm washed earth and gravel onto a level crossing, derailing a Delaware, Lackawanna & Western Railroad train, killing 50 people.
Split into simpler sentences: The Rockport train wreck happened at Rockport, New Jersey, in Mansfield Township just outside Hackettstown on June 16,1925. A violent storm washed earth and gravel onto a level crossing, derailing a Delaware, Lackawanna & Western Railroad train and killing 50 people.