Dave is white. Erin is cold. Erin is quiet. Erin is smart. Erin is white. Erin is young. Fiona is round. Fiona is smart. Fiona is white. Gary is green. Gary is white. Gary is young. If someone is not green then they are quiet. All green people are cold. All quiet people are cold. All cold, white people are young. If someone is not young then they are cold. If someone is not cold then they are round.
Dave is not smart.