<|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_LaHf3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.68
_cell_length_b   10.61
_cell_length_c   6.63
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaHf3
_chemical_formula_sum   'La4 Hf12'
_cell_volume   399.27
_cell_formula_units_Z   4
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
  La  La12  1  0.5  0.95  0.21  1.0
  La  La13  1  0.34  0.65  0.89  1.0
  La  La14  1  0.34  0.95  0.73  1.0
  La  La15  1  0.19  0.65  0.42  1.0
  Hf  Hf0  1  0.12  0.65  0.69  1.0
  Hf  Hf1  1  0.52  0.52  0.5  1.0
  Hf  Hf2  1  0.52  0.39  0.5  1.0
  Hf  Hf3  1  0.32  0.22  0.81  1.0
  Hf  Hf4  1  0.32  0.08  0.81  1.0
  Hf  Hf5  1  0.41  0.95  0.37  1.0
  Hf  Hf6  1  0.28  0.65  0.25  1.0
  Hf  Hf7  1  0.36  0.52  0.81  1.0
  Hf  Hf8  1  0.36  0.39  0.81  1.0
  Hf  Hf9  1  0.17  0.22  0.13  1.0
  Hf  Hf10  1  0.17  0.08  0.13  1.0
  Hf  Hf11  1  0.57  0.95  0.94  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_LaHf3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.68
_cell_length_b   10.61
_cell_length_c   6.63
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaHf3
_chemical_formula_sum   'La4 Hf12'
_cell_volume   399.27
_cell_formula_units_Z   4
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
  La  La12  1  0.5  0.95  0.21  1.0
  La  La13  1  0.34  0.65  0.89  1.0
  La  La14  1  0.34  0.95  0.73  1.0
  La  La15  1  0.19  0.65  0.42  1.0
  Hf  Hf0  1  0.12  0.65  0.69  1.0
  Hf  Hf1  1  0.52  0.52  0.5  1.0
  Hf  Hf2  1  0.52  0.39  0.5  1.0
  Hf  Hf3  1  0.32  0.22  0.81  1.0
  Hf  Hf4  1  0.32  0.08  0.81  1.0
  Hf  Hf5  1  0.41  0.95  0.37  1.0
  Hf  Hf6  1  0.28  0.65  0.25  1.0
  Hf  Hf7  1  0.36  0.52  0.81  1.0
  Hf  Hf8  1  0.36  0.39  0.81  1.0
  Hf  Hf9  1  0.17  0.22  0.13  1.0
  Hf  Hf10  1  0.17  0.08  0.13  1.0
  Hf  Hf11  1  0.57  0.95  0.94  1.0

What is the crystal system of this material?