Dave is big. Dave is green. Erin is big. Erin is not green. Fiona is cold. Fiona is kind. Harry is big. Harry is furry. Harry is kind. Harry is not white. If Fiona is furry and Fiona is not green then Fiona is rough. All cold, rough things are white. Kind things are furry. If Dave is green then Dave is cold. If something is green then it is cold. If something is not furry then it is big.
Fiona is not rough.