From: pedro.kroger@gmail.com   
      
   Hi,   
      
   There's a program called humdrum that has a tabular format like:   
      
   **foo  **bar   
   a       b   
   a       b   
   a       b   
      
   where **foo indicates the type of data on the 1st column and **bar on   
   the 2nd. The format can have an infinite number of columns and many   
   different types of data (i.e. many ** things).   
   I'd like to know if I can describe this format using an EBNF grammar.   
      
   My impression is that I can't describe this kind of thing with an EBNF   
   grammar, is my assumption correct?   
      
   Pedro   
      
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