Bob is blue. Bob is furry. Bob is rough. Bob is not round. Bob is smart. Charlie is blue. Charlie is furry. Charlie is rough. Charlie is young. Fiona is blue. Fiona is not rough. Fiona is smart. Gary is furry. Gary is not round. Gary is smart. Gary is white. If something is not smart then it is white. If Bob is blue then Bob is rough. If Gary is rough and Gary is furry then Gary is white. If something is furry and white then it is young. If something is rough then it is furry. If something is round and furry then it is rough. If something is not rough and not furry then it is white. If something is not young and not white then it is not round.
Bob is not smart.