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      #2
      6 d0
      1
      6x0
      1
      1 1
      1 1 1
      1 1 1 1
      1 1 1 1 1
      1 1 1 1 1 1
      
   
         Aut_grp f > gf
      
      to get all the relevant data of the Bravais group B on file 'gf'.
   
         Bravais_inclusions gf > gfi
      
      to get all the Bravais subgroups of B on the file 'gfi', more
      precisely a list of the representatives of their conjugacy
      classes under the normalizer of B in GLn(Z), which is B itself.
         grep Symbol gfi | wc
      
      to count 27 subgroups.
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