Bob is quiet. Dave is cold. Dave is green. Dave is red. Dave is white. Dave is young. Erin is cold. Erin is young. Gary is white. Gary is young. All cold people are white. All red, cold people are quiet. If someone is round and quiet then they are green. If Erin is round then Erin is red. Round people are white. If Dave is white and Dave is young then Dave is cold. If someone is white then they are round. If Dave is green then Dave is quiet.
Gary is red.