Complex sentence: During a weekend in the Fall Term, the Student Council holds Fall Ball, a dinner/dance formal formerly called Cocktails.It used to be each dorm's prefects is set their new students up with seniors of the opposite sex from other dorms.
Split into simpler sentences: During a weekend in the Fall Term, the Student Council holds Fall Ball, a dinner/dance formal formerly called Cocktails. Each dorm's prefects set their new students up with seniors of the opposite sex from other dorms.