Format Description for Init(nnnn)

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                                                    (1)   
>>-+-I----+-+-------------------------------------+------------->
   '-Init-' +-nnnn-+------------+-----------------+       
            |      '---+-nnnn-+-'                 |       
            |          '-*----'                   |       
            +-'nnnn'------------------------------+       
            |   .-,---------------------------.   |       
            |   V                             |   |       
            '-(---+-+-nnnn-+-+------------+-+-+-)-'       
                  | '-*----' '---+-nnnn-+-' |             
                  |              '-*----'   |             
                  +-nnnn--------------------+             
                  '-'nnnn'------------------'             

>--+---------------------------------+-------------------------->
   '-| Selection limiting keywords |-'   

>--+---------------------------+-------------------------------><
   '-| Modification keywords |-'   

Modification keywords

|--+--------------------------------------+--+------------+----->
   '-,--CLass--=--+---------------------+-'  '-,NAME=vvvv-'   
                  +-classlist-----------+                     
                  |    .-,---------.    |                     
                  |    V           |    |                     
                  '-( ---+-------+-+--)-'                     
                         '-class-'                            

>--+-----------------+------------------------------------------|
   |         .-Yes-. |   
   '-,START=-+-No--+-'   

Selection limiting keywords

|--+-------------------------------------------------+---------->
   '-,----/----CLass--+-=-+--+---------------------+-'   
                      +-≠-+  +-classlist-----------+     
                      +->-+  |    .-,---------.    |     
                      '-<-'  |    V           |    |     
                             '-( ---+-------+-+--)-'     
                                    '-class-'            

>--+-------------------------+---------------------------------->
   '-,---/---NAME-+-=-+-vvvv-'   
                  +-≠-+          
                  +->-+          
                  '-<-'          

>--+-----------------------------+------------------------------|
   '-,---/---START-+-=-+-+-No--+-'   
                   '-≠-' '-Yes-'     

Notes:
  1. Omit the comma between initialization statement and first keyword