(1)   
>>-D--SUBNET-+------------------------------+------------------->
             +-'-+-jxxxxxxx-+-'-------------+       
             |   '-*--------'               |       
             |   .-,--------------------.   |       
             |   V                      |   |       
             '-(---+-+-jxxxxxxx-+-----+-+-)-'       
                   | '-*--------'     |             
                   '-'-+-jxxxxxxx-+-'-'             
                       '-*--------'                 

>--+------------------------------+----------------------------><
   '-,NODE-+--------------------+-'   
           +-'node'-------------+     
           |   .-,----------.   |     
           |   V            |   |     
           '-(---+-node---+-+-)-'     
                 '-'node'-'           

1. Omit the comma between initialization statement and first keyword