Fiona is furry. Fiona is quiet. Fiona is rough. If something is rough and white then it is red. If something is white and not rough then it is red. Cold, white things are not furry. If something is rough and quiet then it is young. Cold things are white. If Fiona is cold and Fiona is not furry then Fiona is red.
Fiona is not furry.
@0: Fiona is furry.[(triple1)] Fiona is quiet.[(triple2)] Fiona is rough.[(triple3)] @1: Fiona is young.[(((triple3 triple2) -> rule4))]