Complex sentence: In the fall, Martel hosts an annual Oktoberfest party in its quad, and in December, there is a massive decorating contest, in which each of Martel's four floors try to best each other's holiday decorations.
Split into simpler sentences: In the fall, Martel hosts an annual Oktoberfest party. In December, there is a massive decorating contest, in which each of Martel's four floors try to best each other's holiday decorations.