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