<|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_ZrHg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.32
_cell_length_b   6.32
_cell_length_c   10.19
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZrHg3
_chemical_formula_sum   'Zr4 Hg12'
_cell_volume   352.81
_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  0.0  1.0
  Zr  Zr13  1  0.0  0.0  0.1  1.0
  Zr  Zr14  1  0.0  0.65  0.55  1.0
  Zr  Zr15  1  0.16  0.82  0.64  1.0
  Hg  Hg0  1  0.42  0.74  0.0  1.0
  Hg  Hg1  1  0.42  0.74  0.1  1.0
  Hg  Hg2  1  0.0  0.8  0.64  1.0
  Hg  Hg3  1  0.4  0.58  0.64  1.0
  Hg  Hg4  1  0.56  0.9  0.55  1.0
  Hg  Hg5  1  0.16  0.0  0.0  1.0
  Hg  Hg6  1  0.16  0.0  0.1  1.0
  Hg  Hg7  1  0.58  0.74  0.0  1.0
  Hg  Hg8  1  0.58  0.74  0.1  1.0
  Hg  Hg9  1  0.6  0.58  0.64  1.0
  Hg  Hg10  1  0.76  0.9  0.55  1.0
  Hg  Hg11  1  0.16  0.68  0.55  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_ZrHg3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.32
_cell_length_b   6.32
_cell_length_c   10.19
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZrHg3
_chemical_formula_sum   'Zr4 Hg12'
_cell_volume   352.81
_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  0.0  1.0
  Zr  Zr13  1  0.0  0.0  0.1  1.0
  Zr  Zr14  1  0.0  0.65  0.55  1.0
  Zr  Zr15  1  0.16  0.82  0.64  1.0
  Hg  Hg0  1  0.42  0.74  0.0  1.0
  Hg  Hg1  1  0.42  0.74  0.1  1.0
  Hg  Hg2  1  0.0  0.8  0.64  1.0
  Hg  Hg3  1  0.4  0.58  0.64  1.0
  Hg  Hg4  1  0.56  0.9  0.55  1.0
  Hg  Hg5  1  0.16  0.0  0.0  1.0
  Hg  Hg6  1  0.16  0.0  0.1  1.0
  Hg  Hg7  1  0.58  0.74  0.0  1.0
  Hg  Hg8  1  0.58  0.74  0.1  1.0
  Hg  Hg9  1  0.6  0.58  0.64  1.0
  Hg  Hg10  1  0.76  0.9  0.55  1.0
  Hg  Hg11  1  0.16  0.68  0.55  1.0

What is the crystal system of this material?