nrepreset: 2
representatives:
    x,y,z
    -x,y+0.5,-z
nsymops:   2
symops:
    x,y,z
    -x,y+0.5,-z
inversion: 0
centering: 0,0,0 
{
   "constraints" => "$alpha == 90 && $gamma == 90",
   "crystal_class" => "monoclinic",
   "hall" => "P 2yb",
   "hermann_mauguin" => "P 1 21 1",
   "ncsym" => [ "x,y,z", "-x,y+1/2,-z" ],
   "number" => "4",
   "schoenflies" => "C2^2",
   "symops" => [ "x,y,z", "-x,y+1/2,-z" ],
   "universal_h_m" => "P 1 21 1",
},
#-------------------------
