Alan is rough. Alan is red. Alan is nice. Alan is green. Charlie is round. Charlie is red. Charlie is green. Charlie is big. Dave is red. Dave is nice. Dave is big. If someone is red and green and round then they are young. If someone is nice and kind then they are rough. If someone is blue and kind and nice then they are rough. If someone is round and young then they are blue. If someone is round and blue and green then they are nice. If someone is green and round then they are red. If someone is cold and kind then they are young.
Charlie is blue.