Fiona is blue. Fiona is round. Fiona is not young. If something is young then it is green. If Fiona is green then Fiona is not blue. If Fiona is young and Fiona is not round then Fiona is red. If something is blue and not round then it is nice. If something is nice then it is not rough. If something is not young and not green then it is not red.
Fiona is not nice.