Complex sentence: In New Jersey, a state which now has an office of lieutenant governor, in the event of a vacancy in the office of governor or the inability of the current governor to fulfill their duties through injury, the Lieutenant Governor serves as the acting governor.
Split into simpler sentences: In New Jersey, a state which now has an office of lieutenant governor, in the event of a vacancy in the office of governor, the Lieutenant Governor becomes governor. In case of the inability of the current governor to fulfill their duties through injury, the Lieutenant Governor serves as the acting governor.