Bob is big. Bob is blue. Bob is nice. Bob is rough. Bob is round. Dave is nice. Dave is rough. If someone is not nice then they are big. If Dave is rough then Dave is big. If Dave is big then Dave is blue. If someone is round and big then they are green. All young, green people are big. If someone is nice then they are young. All blue, big people are green. If Bob is blue then Bob is young.
Bob is blue.