Bob is cold. Bob is round. Bob is smart. Charlie is not blue. Charlie is rough. Charlie is round. Dave is cold. Dave is rough. Erin is round. Erin is smart. If something is round and furry then it is smart. Young things are round. If Charlie is rough and Charlie is furry then Charlie is young. All smart things are cold. If something is not smart then it is not furry. If something is round and not young then it is rough. If something is not young and not rough then it is blue. If something is young and not rough then it is furry.
Bob is young.