data_YP
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.29
_cell_length_b   6.29
_cell_length_c   6.29
_cell_angle_alpha   143.32
_cell_angle_beta   143.32
_cell_angle_gamma   52.85
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YP
_chemical_formula_sum   'Y2 P2'
_cell_volume   88.34
_cell_formula_units_Z   2
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
  Y  Y2  1  0.0  0.0  0.63  1.0
  Y  Y3  1  0.98  0.0  0.82  1.0
  P  P0  1  0.0  0.0  0.0  1.0
  P  P1  1  0.0  0.98  0.82  1.0

data_YP
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.96
_cell_length_b   3.96
_cell_length_c   6.29
_cell_angle_alpha   108.34
_cell_angle_beta   108.34
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YP
_chemical_formula_sum   'Y2 P2'
_cell_volume   88.34
_cell_formula_units_Z   2
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
  Y  Y0  1  0.63  0.63  0.63  1.0
  Y  Y1  1  0.82  0.84  0.84  1.0
  P  P2  1  0.0  0.0  0.0  1.0
  P  P3  1  0.84  0.82  0.84  1.0

Y Y P P
Y Y P P 0 1 - o o 0 3 o - o 1 3 + - o 1 2 + o + 2 3 o - - 