| +---------------20.5-----------------+ | 
				| :                                    : | 
				| +-------------18.4--------------:                                    : | 
				| :                               :                                    : | 
				| :                               :                                    : | 
				| :                             13.9                                15.9 | 
				| :                               :                                    : | 
				| 12                              12                                    : | 
				| :                               :J                                   : | 
				| -------11.4--------:                               +-------10.5-------+                 : | 
				| B                  2C                              2D                 2                 : | 
				| -------11.4--------+-------------18.4--------------+-------10.5-------+-------10--------+ | 
				| :F                : | 
				| :                 : | 
				| :                 : | 
				| :                 : | 
				| 15.9             15.9 | 
				| :                 : | 
				| :                 : | 
				| :                 : | 
				| :                 : | 
				| :                 : | 
				| 30.5                                              +--------11---------G-------10--------+ | 
				| :H                  :                 : | 
				| :                   :                 : | 
				| :                   :                 : | 
				| 12.5               12.5                : | 
				| :                   :                 : | 
				| :                   :                 : | 
				| 20.5                 :              20.5 | 
				| :                   :                 : | 
				| A                                       1.5--5.5--+--------11---------+                 : | 
				| ---------13---------.5--+----108.5-----+1+        :                                     : | 
				| :             I:          :                                     : | 
				| 5.5            5.5         :                                     : | 
				| :              :          :                                     : | 
				| +------8.5-----+          +-----------------21------------------+ |