Bob is furry. Bob is green. Bob is kind. Bob is red. Bob is rough. Bob is young. Fiona is kind. Fiona is young. Harry is not furry. Harry is not kind. Harry is red. Harry is rough. If Fiona is kind then Fiona is rough. If Fiona is red and Fiona is rough then Fiona is smart. All kind things are furry. If something is furry then it is green. Red, green things are furry. If Harry is not green then Harry is not kind.
Fiona is not kind.