Bob is big. Bob is nice. Charlie is not big. Charlie is green. Charlie is nice. Dave is furry. Dave is green. Dave is quiet. Dave is young. Harry is nice. If someone is green and not furry then they are nice. Quiet people are young. If someone is not green then they are young. If Dave is round and Dave is quiet then Dave is young. If someone is not young then they are not big. If someone is not young and not big then they are nice.
Harry is round.