Anne is big. Anne is rough. Dave is big. Dave is blue. Dave is rough. Dave is round. Dave is young. Fiona is cold. Fiona is furry. Fiona is young. Gary is young. If someone is blue and big then they are furry. If someone is blue and young then they are big. Round people are cold. Round, rough people are cold. All rough, cold people are blue. Cold people are rough. If Dave is young then Dave is big. If someone is young then they are round. If someone is big then they are blue.
Gary is not blue.