-&lt;-------------------o   |
|                        /|\              Denotation             .    |
|                       / | \                                   .     |
|                      /  |  \                                 .      |
|                     /   |   \                               .       |
|                    / R u l e \                             .        |
|                   /     |     \                           .         |
|                  /      |      \                