| +----12------+ | 
				| :            : | 
				| 7.9           : | 
				| :            : | 
				| +------------24------------F          17.9 | 
				| 6                          :            : | 
				| :B    14.5                10            : | 
				| 4---------------4          :            : | 
				| --------------31----------------+               +---9.53---+----12------+-23------------+ | 
				| :C                        : | 
				| :                         : | 
				| :                         : | 
				| :                         : | 
				| 24                                                           24                         : | 
				| :                         : | 
				| 31                        31 | 
				| :                         : | 
				| :                         : | 
				| :                         : | 
				| ----13.5-----+                                  +-----13------:                         : | 
				| 7.4                                7.4            :                         : | 
				| :A                                 :             :                         : | 
				| +-+--------------330--------------D+             +-----------23------------+ | 
				| :6                             6 | 
				| +-------------27.9-------------+ |