Complex sentence: Olver won election to a full term in 1992, in 1994, the year which Republican took control of the House for the first time in 40 years, Olver ran unopposed.
Split into simpler sentences: Olver won election to a full term in 1992. In 1994, the year which Republican took control of the House for the first time in 40 years, Olver ran unopposed.