Bob is not red. Erin is cold. If something is nice and not rough then it is cold. If Bob is red and Bob is big then Bob is not cold. If something is smart then it is quiet. If Erin is cold then Erin is quiet. If Bob is smart then Bob is big. If Erin is quiet then Erin is not smart. If something is not big then it is quiet. If something is big and not quiet then it is not nice.
Bob is not quiet.