<|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_HgAs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.92
_cell_length_b   4.92
_cell_length_c   10.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HgAs
_chemical_formula_sum   'Hg4 As4'
_cell_volume   228.5
_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
  Hg  Hg4  1  0.0  0.0  0.73  1.0
  Hg  Hg5  1  0.0  0.0  0.19  1.0
  Hg  Hg6  1  0.46  0.42  0.19  1.0
  Hg  Hg7  1  0.0  0.84  0.73  1.0
  As  As0  1  0.46  0.42  0.81  1.0
  As  As1  1  0.0  0.84  0.35  1.0
  As  As2  1  0.0  0.84  0.11  1.0
  As  As3  1  0.46  0.42  0.57  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_HgAs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.92
_cell_length_b   4.92
_cell_length_c   10.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HgAs
_chemical_formula_sum   'Hg4 As4'
_cell_volume   228.5
_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
  Hg  Hg4  1  0.0  0.0  0.73  1.0
  Hg  Hg5  1  0.0  0.0  0.19  1.0
  Hg  Hg6  1  0.46  0.42  0.19  1.0
  Hg  Hg7  1  0.0  0.84  0.73  1.0
  As  As0  1  0.46  0.42  0.81  1.0
  As  As1  1  0.0  0.84  0.35  1.0
  As  As2  1  0.0  0.84  0.11  1.0
  As  As3  1  0.46  0.42  0.57  1.0

What is the crystal system of this material?