Complex sentence: In 1674 the central portion of the cathedral with the nave collapsed in a storm, a tornado ripped through Utrecht causing many to die and split the cathedral in two and has never been rebuilt, leaving the tower now isolated from the east end.
Split into simpler sentences: In 1674 the central portion of the cathedral with the nave collapsed in a storm, a tornado ripped through Utrecht causing many to die and split the cathedral in two. It has never been rebuilt, leaving the tower now isolated from the east end.