Bob is cold. Bob is rough. Bob is white. Dave is furry. Dave is rough. Fiona is cold. Fiona is furry. Fiona is rough. Fiona is round. Fiona is smart. Gary is cold. Gary is green. Gary is rough. Gary is round. Gary is white. If someone is white then they are rough. If someone is furry and cold then they are white.
Fiona is not green.