Alan is blue. Bob is young. Bob is red. Fred is young. Fred is round. Fred is blue. Harry is red. If someone is big and kind then they are young. If someone is red and green then they are round. If someone is young and blue then they are nice. If someone is nice and big and red then they are green. If someone is rough and green then they are nice. If someone is nice then they are cold. If someone is nice and young and cold then they are green.
Fred is not green.