<|im_start|>system
Please reason step by step, and put your final answer within \boxed{}.<|im_end|>
<|im_start|>user
Given the following CIF representation:
data_Nd3ZrSb5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.51
_cell_length_b   9.51
_cell_length_c   6.37
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nd3ZrSb5
_chemical_formula_sum   'Nd6 Zr2 Sb10'
_cell_volume   498.69
_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
  Nd  Nd0  1  0.18  0.15  0.78  1.0
  Nd  Nd1  1  0.06  0.08  0.59  1.0
  Nd  Nd2  1  0.94  0.08  0.78  1.0
  Nd  Nd3  1  0.82  0.15  0.59  1.0
  Nd  Nd4  1  0.64  0.0  0.78  1.0
  Nd  Nd5  1  0.87  0.0  0.59  1.0
  Zr  Zr6  1  0.0  0.0  0.18  1.0
  Zr  Zr7  1  0.0  0.0  0.0  1.0
  Sb  Sb8  1  0.5  0.06  0.78  1.0
  Sb  Sb9  1  0.74  0.18  0.59  1.0
  Sb  Sb10  1  0.26  0.18  0.78  1.0
  Sb  Sb11  1  0.5  0.06  0.59  1.0
  Sb  Sb12  1  1.0  0.0  0.78  1.0
  Sb  Sb13  1  0.51  0.0  0.59  1.0
  Sb  Sb14  1  0.75  0.74  0.18  1.0
  Sb  Sb15  1  0.0  0.49  0.18  1.0
  Sb  Sb16  1  0.0  0.49  0.0  1.0
  Sb  Sb17  1  0.75  0.74  0.0  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_Nd3ZrSb5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.51
_cell_length_b   9.51
_cell_length_c   6.37
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nd3ZrSb5
_chemical_formula_sum   'Nd6 Zr2 Sb10'
_cell_volume   498.69
_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
  Nd  Nd0  1  0.18  0.15  0.78  1.0
  Nd  Nd1  1  0.06  0.08  0.59  1.0
  Nd  Nd2  1  0.94  0.08  0.78  1.0
  Nd  Nd3  1  0.82  0.15  0.59  1.0
  Nd  Nd4  1  0.64  0.0  0.78  1.0
  Nd  Nd5  1  0.87  0.0  0.59  1.0
  Zr  Zr6  1  0.0  0.0  0.18  1.0
  Zr  Zr7  1  0.0  0.0  0.0  1.0
  Sb  Sb8  1  0.5  0.06  0.78  1.0
  Sb  Sb9  1  0.74  0.18  0.59  1.0
  Sb  Sb10  1  0.26  0.18  0.78  1.0
  Sb  Sb11  1  0.5  0.06  0.59  1.0
  Sb  Sb12  1  1.0  0.0  0.78  1.0
  Sb  Sb13  1  0.51  0.0  0.59  1.0
  Sb  Sb14  1  0.75  0.74  0.18  1.0
  Sb  Sb15  1  0.0  0.49  0.18  1.0
  Sb  Sb16  1  0.0  0.49  0.0  1.0
  Sb  Sb17  1  0.75  0.74  0.0  1.0

What is the crystal system of this material?