<|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_AgHg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.1
_cell_length_b   12.1
_cell_length_c   12.1
_cell_angle_alpha   165.57
_cell_angle_beta   161.37
_cell_angle_gamma   23.64
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AgHg2
_chemical_formula_sum   'Ag2 Hg4'
_cell_volume   140.83
_cell_formula_units_Z   2
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
  Ag  Ag0  1  0.0  0.98  0.73  1.0
  Ag  Ag1  1  0.52  0.98  0.11  1.0
  Hg  Hg2  1  0.0  0.98  0.15  1.0
  Hg  Hg3  1  0.0  0.98  0.6  1.0
  Hg  Hg4  1  0.52  0.98  0.24  1.0
  Hg  Hg5  1  0.52  0.98  0.69  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_AgHg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.1
_cell_length_b   12.1
_cell_length_c   12.1
_cell_angle_alpha   165.57
_cell_angle_beta   161.37
_cell_angle_gamma   23.64
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AgHg2
_chemical_formula_sum   'Ag2 Hg4'
_cell_volume   140.83
_cell_formula_units_Z   2
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
  Ag  Ag0  1  0.0  0.98  0.73  1.0
  Ag  Ag1  1  0.52  0.98  0.11  1.0
  Hg  Hg2  1  0.0  0.98  0.15  1.0
  Hg  Hg3  1  0.0  0.98  0.6  1.0
  Hg  Hg4  1  0.52  0.98  0.24  1.0
  Hg  Hg5  1  0.52  0.98  0.69  1.0

What is the crystal system of this material?