<|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_ZrB3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.0
_cell_length_b   5.0
_cell_length_c   7.26
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZrB3
_chemical_formula_sum   'Zr4 B12'
_cell_volume   156.95
_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
  Zr  Zr12  1  0.0  0.0  0.63  1.0
  Zr  Zr13  1  0.0  0.0  0.0  1.0
  Zr  Zr14  1  0.5  0.44  0.44  1.0
  Zr  Zr15  1  0.0  0.88  0.81  1.0
  B  B0  1  0.75  0.16  0.63  1.0
  B  B1  1  0.75  0.16  0.0  1.0
  B  B2  1  0.25  0.16  0.63  1.0
  B  B3  1  0.5  0.0  0.63  1.0
  B  B4  1  0.5  0.0  0.0  1.0
  B  B5  1  0.25  0.16  0.0  1.0
  B  B6  1  0.87  0.39  0.44  1.0
  B  B7  1  0.63  0.94  0.81  1.0
  B  B8  1  0.13  0.39  0.44  1.0
  B  B9  1  0.0  0.88  0.44  1.0
  B  B10  1  0.5  0.44  0.81  1.0
  B  B11  1  0.37  0.94  0.81  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_ZrB3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.0
_cell_length_b   5.0
_cell_length_c   7.26
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZrB3
_chemical_formula_sum   'Zr4 B12'
_cell_volume   156.95
_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
  Zr  Zr12  1  0.0  0.0  0.63  1.0
  Zr  Zr13  1  0.0  0.0  0.0  1.0
  Zr  Zr14  1  0.5  0.44  0.44  1.0
  Zr  Zr15  1  0.0  0.88  0.81  1.0
  B  B0  1  0.75  0.16  0.63  1.0
  B  B1  1  0.75  0.16  0.0  1.0
  B  B2  1  0.25  0.16  0.63  1.0
  B  B3  1  0.5  0.0  0.63  1.0
  B  B4  1  0.5  0.0  0.0  1.0
  B  B5  1  0.25  0.16  0.0  1.0
  B  B6  1  0.87  0.39  0.44  1.0
  B  B7  1  0.63  0.94  0.81  1.0
  B  B8  1  0.13  0.39  0.44  1.0
  B  B9  1  0.0  0.88  0.44  1.0
  B  B10  1  0.5  0.44  0.81  1.0
  B  B11  1  0.37  0.94  0.81  1.0

What is the crystal system of this material?