Erin is not green. Erin is quiet. Erin is smart. Erin is white. Erin is young. Gary is cold. Gary is not green. Gary is red. Gary is smart. Gary is young. If someone is quiet and not young then they are red. Cold people are quiet. If Gary is young and Gary is quiet then Gary is white. If someone is young and not green then they are red. If someone is green and quiet then they are white. If someone is not red then they are not smart. If someone is not white then they are not young. If someone is red and not quiet then they are not green.
Erin is quiet.