Dave is cold. Dave is quiet. Dave is not red. Dave is not rough. Dave is smart. Dave is white. Dave is young. Erin is quiet. Erin is white. Fiona is quiet. Fiona is white. Fiona is young. Gary is cold. Gary is red. Gary is rough. Gary is white. If something is red then it is quiet. If something is cold and not young then it is quiet. If Fiona is white and Fiona is young then Fiona is rough. If something is not young then it is rough. If something is smart and not quiet then it is cold. If something is white and not quiet then it is not rough. If something is cold and not quiet then it is rough. If something is rough and not cold then it is not red.
Erin is not cold.