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