Bob is cold. Bob is not furry. Erin is cold. Gary is not furry. Gary is quiet. Gary is rough. Gary is smart. If someone is rough and not cold then they are quiet. All furry people are red. All red people are white. If someone is rough then they are not white. Cold people are red. All red, smart people are white. If someone is not cold then they are rough. If someone is red and not cold then they are rough.
Erin is not rough.