Create a sequence identifier hierarchical structure.
　Write the contents of each sequence identifier.
    Set lower sequences and variable identifiers
　This will generate the pattern configuration.

      The figure below shows how to create a sequence identifier under the file identifier $File[1].
       

 (1) Pattern configuration  
　  Set $Seq[1] and then $Seq[2].
       Set $Seq[3] below $Seq[1].
　  Set $Seq[5] below $Seq[3].
       Set $Seq[4] after $Seq[2].  

  (2) Pattern analysis
       The order of pattern analysis is:  
           1. $Seq[1] (analysis)  (解析）
           2. $Seq[3] (analysis if $Seq[3] is set to the content of $Seq[1])
           3. $Seq[5] (analysis if $Seq[5] is set to the content of $Seq[3])
           4. $Seq[2] (analysis) (解析）
           5. $Seq[4] (analysis)

     1. Parsing $Seq[1]
       　　　

        The variable identifier $Var[28] is a loop.
　   $Var[28] is a variable with the element name --any-- of Lclass
　   Repeat the number of times the data in $Var[28] of the instance is found.
　    Since there is $Seq[3], the contents of $Seq[3] are expanded here.   

     2.Parsing $Seq[3]
      

       $Var[39] is an S class with a fixed element name, so there is no loop.
　   The contents of $Seq[3] are processed only once.
       $Seq[3] is expanded to the contents of the upper $Seq[1]. 
       Since there is $Seq[5], the contents of $Seq[5] are expanded here.

     3. Parsing $Seq[5]
     

       The variable identifiers $Var[57], $Var[58], and $Var[59] are loops.
       Repeat for the number of instances $Var[57], $Var[58], and $Var[59].         
        $Var[57], $Var[58], and $Var[59] are three state transition keywords.

     4. Parsing $Seq[2] 
        

       $Seq[2] has no subsequence and no variable identifiers.
　  The text of $Seq[2] is appended after the expansion of $Seq[1].

     5. Parsing $Seq[4]  
         

        $Seq[4] has no subsequence and no variable identifiers,
　  the text of $Seq[4] is appended after the expansion of $Seq[2].