<|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_AlCuNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.04
_cell_length_b   8.04
_cell_length_c   8.04
_cell_angle_alpha   34.89
_cell_angle_beta   34.89
_cell_angle_gamma   34.89
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlCuNi2
_chemical_formula_sum   'Al3 Cu3 Ni6'
_cell_volume   151.95
_cell_formula_units_Z   3
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
  Al  Al0  1  0.0  0.0  0.92  1.0
  Al  Al1  1  0.0  0.0  0.72  1.0
  Al  Al2  1  0.0  0.0  0.0  1.0
  Cu  Cu3  1  0.0  0.0  0.51  1.0
  Cu  Cu4  1  0.0  0.0  0.13  1.0
  Cu  Cu5  1  0.0  0.0  0.32  1.0
  Ni  Ni6  1  0.17  0.68  0.72  1.0
  Ni  Ni7  1  0.83  0.68  0.72  1.0
  Ni  Ni8  1  0.0  0.65  0.72  1.0
  Ni  Ni9  1  0.83  0.32  0.92  1.0
  Ni  Ni10  1  0.0  0.35  0.92  1.0
  Ni  Ni11  1  0.17  0.32  0.92  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_AlCuNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.04
_cell_length_b   8.04
_cell_length_c   8.04
_cell_angle_alpha   34.89
_cell_angle_beta   34.89
_cell_angle_gamma   34.89
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlCuNi2
_chemical_formula_sum   'Al3 Cu3 Ni6'
_cell_volume   151.95
_cell_formula_units_Z   3
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
  Al  Al0  1  0.0  0.0  0.92  1.0
  Al  Al1  1  0.0  0.0  0.72  1.0
  Al  Al2  1  0.0  0.0  0.0  1.0
  Cu  Cu3  1  0.0  0.0  0.51  1.0
  Cu  Cu4  1  0.0  0.0  0.13  1.0
  Cu  Cu5  1  0.0  0.0  0.32  1.0
  Ni  Ni6  1  0.17  0.68  0.72  1.0
  Ni  Ni7  1  0.83  0.68  0.72  1.0
  Ni  Ni8  1  0.0  0.65  0.72  1.0
  Ni  Ni9  1  0.83  0.32  0.92  1.0
  Ni  Ni10  1  0.0  0.35  0.92  1.0
  Ni  Ni11  1  0.17  0.32  0.92  1.0

What is the crystal system of this material?