Dave is smart. Erin is cold. Fiona is quiet. Harry is cold. If Erin is white and Erin is green then Erin is smart. If Harry is cold and Harry is green then Harry is furry. All cold people are furry. Furry, quiet people are red. If someone is furry and green then they are white. All red people are white. If someone is white and quiet then they are red. If Fiona is cold and Fiona is smart then Fiona is red.
Erin is not furry.