Charlie is cold. Charlie is furry. Charlie is not green. Charlie is nice. Charlie is rough. Charlie is round. Charlie is young. Dave is cold. Dave is furry. Dave is green. Dave is nice. Dave is rough. Dave is round. Dave is young. If something is green and not furry then it is not nice. If something is not rough then it is cold. If something is green and not cold then it is not rough.
Dave is nice.