Dave is cold. Erin is red. Fiona is cold. Fiona is red. Harry is furry. Harry is nice. Harry is young. If Fiona is young and Fiona is quiet then Fiona is round. Red, nice people are not furry. All young people are quiet. If Dave is furry and Dave is young then Dave is red. If someone is round and young then they are nice. If someone is cold then they are young. If someone is cold and furry then they are red. All red people are young. If someone is not nice then they are red.
Erin is not furry.