data_Na2CdAg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.11
_cell_length_b   4.52
_cell_length_c   6.85
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2CdAg
_chemical_formula_sum   'Na2 Cd1 Ag1'
_cell_volume   96.36
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Na  Na2  1  0.0  0.0  0.7  1.0
  Na  Na3  1  0.56  0.26  0.89  1.0
  Cd  Cd1  1  0.56  0.26  0.95  1.0
  Ag  Ag0  1  0.0  0.0  0.57  1.0

data_Na2CdAg
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.11
_cell_length_b   4.52
_cell_length_c   6.85
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2CdAg
_chemical_formula_sum   'Na2 Cd1 Ag1'
_cell_volume   96.36
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Na  Na0  1  0.0  0.0  0.7  1.0
  Na  Na1  1  0.56  0.26  0.89  1.0
  Cd  Cd2  1  0.56  0.26  0.95  1.0
  Ag  Ag3  1  0.0  0.0  0.57  1.0

Na Na Cd Ag
Na Na Cd Ag 0 3 o o o 1 2 o o o 