Bob is furry. Bob is green. Bob is not quiet. Fiona is furry. Fiona is green. Fiona is red. Fiona is not rough. Fiona is young. Gary is furry. Gary is not quiet. Gary is red. Gary is young. Harry is quiet. Harry is red. Harry is not round. Quiet things are young. If Harry is furry then Harry is not green. If something is red and quiet then it is rough. If Gary is red then Gary is young. If Harry is round and Harry is green then Harry is young. If Harry is young then Harry is furry.
Harry is not young.