This is the full cluster diagram from the first trial run with a
fully connected network of 16 hidden nodes.  It is one of the
best examples of strong clustering that we have seen, though the
results of the network are poor.

  __|-> 1
 |  |_|-> 1
 |    |_|-> 1
 |      |-> 1
-|  |--> 7
 |  |  |--> 4
 |  |  |   __|-> 0
 |--|  |  |  |_|-> 4
    |  |  |    |-> 0
    |  |  |      _|-> 4
    |--|  |     | |_|-> 4
       |  |     |   |-> 4
       |  |  |--|  _|-> 5
       |  |  |  | | |-> 1
       |  |  |  |-| |-> 1
       |  |  |    | | |-> 1
       |--|  |    | | |     |-> 1
          |  |    |-| |     |      _|-> 1
          |  |      | |     |   |-| |-> 1
          |  |      | |   |-|   | |-> 1
          |  |      |-|   | | |-|    _|-> 1
          |  |        |   | | | | |-| |-> 1
          |  |        |   | |-| |-| |-> 1
          |  |        | |-|   |   |-> 1
          |  |        | | |   |  _|-> 1
          |  |        | | |   |-| |-> 1
          |--|        |-| |     |-> 1
             |          | |_|-> 1
             |          |   |-> 1
             |          | |-> 1
             |          |-|  _|-> 1
             |            |-| |-> 1
             |              |-> 1
             |  |--> 2
             |  |     _|-> 0
             |  |  |-| |-> 0
             |  |  | |_|-> 0
             |  |  |   |-> 0
             |  |  |  _|-> 7
             |--|  | | |-> 7
                |  | |          _|-> 7
                |  | |       |-| |-> 7
                |  | |     |-| |-> 7
                |  | |   |-| |-> 7
                |  | |   | |  _|-> 7
                |  | |   | |-| |-> 7
                |--| |   |   |-> 7
                   | |   |   |-> 2
                   | |   |   |    _|-> 2
                   | |   |   |   | |_|-> 2
                   | | |-| |-| |-|   |_|-> 2
                   | | | | | | | |     |-> 2
                   | | | | | | | |_|-> 2
                   | | | | | |-|   |_|-> 2
                   | | | | |   |     |-> 2
                   | | | | |   |_|-> 2
                   | | | | |     |_|-> 2
                   |-| | |-|       |-> 2
                     | |   |    _|-> 0
                     | |   | |-| |-> 0
                     | |   | | |_|-> 0
                     | |   | |   |-> 0
                     | |   | |    _|-> 0
                     | |   | |   | |-> 0
                     | |   |-| |-| |-> 0
                     | |     | | |-|  _|-> 0
                     | |     | |   | | |_|-> 0
                     | |     | |   |-|   |-> 0
                     | |     |-|     |_|-> 0
                     | |       |       |-> 0
                     | |       |    _|-> 0
                     | |       | |-| |-> 0
                     | |       | | |_|-> 0
                     | |       |-|   |-> 0
                     | |         |_|-> 0
                     | |           |-> 0
                     | |    _|-> 7
                     |-|   | |-> 7
                       |   |  _|-> 7
                       |   | | |-> 7
                       | |-| |    _|-> 2
                       | | | |   | |_|-> 2
                       | | | |   |   |_|-> 2
                       | | |-| |-|     |_|-> 2
                       | |   | | |       |-> 2
                       | |   | | | |-> 2
                       | |   | | |-|  _|-> 2
                       | |   | |   |-| |-> 2
                       | |   |-|     |_|-> 2
                       | |     |       |_|-> 2
                       | |     |         |-> 2
                       | |     | |-> 7
                       | |     | |        _|-> 7
                       | |     | |     |-| |-> 7
                       | |     |-|   |-| |-> 7
                       | |       |   | |  _|-> 7
                       | |       | |-| |-| |-> 7
                       | |       |-| |   |-> 7
                       | |         | |-> 7
                       | |         |-> 7
                       | |       |-> 5
                       | |     |-| |-> 5
                       | |     | |-|  _|-> 5
                       | |   |-|   |-| |-> 5
                       |-|   | |     |-> 5
                         |   | |_|-> 5
                         | |-|   |-> 5
                         | | |  _|-> 5
                         | | | | |-> 5
                         | | |-|  _|-> 5
                         | |   | | |-> 5
                         | |   |-|    _|-> 5
                         | |     | |-| |-> 5
                         | |     | | |-> 5
                         | |     |-| |-> 5
                         | |       |-|    _|-> 5
                         | |         | |-| |-> 5
                         | |         |-| |-> 5
                         | |           |  _|-> 5
                         | |           |-| |-> 5
                         | |             |_|-> 5
                         | |               |-> 5
                         | |     |-> 8
                         | |   |-|    _|-> 8
                         | |   | | |-| |-> 8
                         | |   | |-| |-> 8
                         | |   |   |_|-> 8
                         |-| |-|     |-> 8
                           | | |      _|-> 8
                           | | |   |-| |-> 8
                           | | | |-| |-> 8
                           | | | | |-> 8
                           | | |-|  _|-> 8
                           | |   | | |_|-> 8
                           | |   |-|   |-> 8
                           | |     | |-> 8
                           | |     |-|  _|-> 8
                           | |       |-| |-> 8
                           | |         |-> 8
                           | |      _|-> 3
                           | |   |-| |-> 3
                           | |   | |-> 5
                           | | |-| |-> 9
                           | | | |-| |-> 3
                           | | |   | |  _|-> 2
                           | | |   |-| | |_|-> 3
                           | | |     | |   |-> 3
                           | | |     | |   |-> 3
                           | | |     |-|   |      _|-> 3
                           |-| |       | |-|   |-| |-> 3
                             | |       | | | |-| |-> 3
                             | |       | | |-| |-> 3
                             | |       |-|   |_|-> 3
                             | |         |     |-> 3
                             | |         | |-> 3
                             | |         | |  _|-> 3
                             | |         |-| | |_|-> 3
                             | |           | |   |-> 3
                             | |           |-| |-> 3
                             | |             | |   |-> 3
                             | |             |-| |-|   |-> 3
                             | |               | | | |-|  _|-> 3
                             | |               |-| |-| |-| |-> 3
                             | |                 |   |   |-> 3
                             | |                 |   |-> 3
                             | |                 |-> 3
                             | |        _|-> 4
                             | |     |-| |-> 4
                             | |     | |_|-> 4
                             | |   |-|   |-> 4
                             |-|   | |_|-> 4
                               |   |   |-> 4
                               |   |      _|-> 6
                               |   |   |-| |-> 4
                               |   |   | | |-> 8
                               |   |   | |-|  _|-> 4
                               |   |   |   |-| |-> 4
                               | |-|   |     |-> 4
                               | | | |-|    _|-> 9
                               | | | | |   | |-> 7
                               | | | | | |-|  _|-> 9
                               | | | | | | |-| |-> 9
                               | | | | |-|   |_|-> 9
                               | | | |   |     |-> 9
                               | | | |   | |-> 8
                               | | |-|   |-|  _|-> 8
                               | |   |     |-| |-> 8
                               | |   |       |_|-> 8
                               | |   |         |_|-> 8
                               | |   |           |-> 8
                               | |   | |-> 6
                               | |   | |    _|-> 6
                               | |   | |   | |_|-> 6
                               | |   |-| |-|   |_|-> 6
                               | |     | | |     |_|-> 6
                               | |     | | |       |-> 6
                               | |     | | |-> 4
                               | |     |-|  _|-> 6
                               | |       | | |_|-> 6
                               |-|       | |   |-> 6
                                 |       | |    _|-> 6
                                 |       |-| |-| |-> 6
                                 |         | | |-> 6
                                 |         | |   |-> 6
                                 |         |-| |-|  _|-> 6
                                 |           | | |-| |-> 6
                                 |           | |   |  _|-> 6
                                 |           |-|   |-| |-> 6
                                 |             |     |-> 6
                                 |             | |-> 6
                                 |             |-| |-> 6
                                 |               |-|  _|-> 6
                                 |                 |-| |-> 6
                                 |                   |-> 6
                                 |   |-> 4
                                 | |-| |-> 4
                                 | | |-| |-> 4
                                 | |   |-| |-> 4
                                 | |     |-|    _|-> 4
                                 | |       | |-| |-> 4
                                 |-|       |-| |-> 4
                                   |         |-> 4
                                   | |-> 9
                                   | |     |-> 9
                                   | |   |-|  _|-> 9
                                   | |   | |-| |-> 9
                                   |-| |-|   |-> 9
                                     | | | |-> 9
                                     | | | |      _|-> 9
                                     | | |-|   |-| |-> 9
                                     | |   | |-| |-> 9
                                     |-|   |-| |-> 9
                                       |     |  _|-> 9
                                       |     |-| |-> 9
                                       |       |-> 9
                                       |  _|-> 9
                                       |-| |-> 9
                                         |_|-> 9
                                           |_|-> 9
                                             |-> 9