Dave is rough. Dave is young. Erin is rough. Erin is white. Gary is furry. Gary is green. Harry is young. Cold things are young. Young things are big. If Dave is rough then Dave is green. All cold, rough things are green. Rough, big things are furry. If something is furry and green then it is rough. All green things are cold. Young things are rough. If something is rough then it is green.
Dave is green.