Bob is young. Dave is green. Dave is rough. Erin is green. Erin is nice. Fiona is green. Fiona is red. If something is nice then it is green. If something is rough then it is blue. If something is not nice then it is not furry. If Fiona is red and Fiona is nice then Fiona is furry. All green things are rough. If Bob is furry and Bob is nice then Bob is rough. If something is not furry and not young then it is blue. If something is furry and not green then it is red.
Bob is nice.