Bob is cold. Bob is red. Bob is smart. Bob is white. Bob is young. Charlie is furry. Charlie is not green. Charlie is white. Charlie is young. Fiona is cold. Fiona is not furry. Fiona is red. Fiona is smart. Fiona is white. Fiona is not young. Harry is not cold. If something is cold then it is white. If Harry is green and Harry is not cold then Harry is white. If something is not smart then it is red. If something is red and not young then it is white. All cold things are not furry. If something is young and not red then it is furry.
Fiona is not green.