<|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_CeSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.3
_cell_length_b   14.3
_cell_length_c   14.3
_cell_angle_alpha   116.09
_cell_angle_beta   116.09
_cell_angle_gamma   116.09
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CeSe2
_chemical_formula_sum   'Ce6 Se12'
_cell_volume   1461.76
_cell_formula_units_Z   6
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
  Ce  Ce0  1  0.0  0.71  0.07  1.0
  Ce  Ce1  1  0.54  0.65  0.07  1.0
  Ce  Ce2  1  0.46  0.65  0.07  1.0
  Ce  Ce3  1  0.0  0.29  0.52  1.0
  Ce  Ce4  1  0.46  0.35  0.52  1.0
  Ce  Ce5  1  0.54  0.35  0.52  1.0
  Se  Se6  1  0.0  0.99  0.43  1.0
  Se  Se7  1  0.93  0.5  0.43  1.0
  Se  Se8  1  0.07  0.5  0.43  1.0
  Se  Se9  1  0.97  0.25  0.86  1.0
  Se  Se10  1  0.83  0.75  0.86  1.0
  Se  Se11  1  0.2  0.01  0.86  1.0
  Se  Se12  1  0.8  0.01  0.86  1.0
  Se  Se13  1  0.17  0.75  0.86  1.0
  Se  Se14  1  0.03  0.25  0.86  1.0
  Se  Se15  1  0.0  0.01  0.86  1.0
  Se  Se16  1  0.07  0.5  0.86  1.0
  Se  Se17  1  0.93  0.5  0.86  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_CeSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.3
_cell_length_b   14.3
_cell_length_c   14.3
_cell_angle_alpha   116.09
_cell_angle_beta   116.09
_cell_angle_gamma   116.09
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CeSe2
_chemical_formula_sum   'Ce6 Se12'
_cell_volume   1461.76
_cell_formula_units_Z   6
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
  Ce  Ce0  1  0.0  0.71  0.07  1.0
  Ce  Ce1  1  0.54  0.65  0.07  1.0
  Ce  Ce2  1  0.46  0.65  0.07  1.0
  Ce  Ce3  1  0.0  0.29  0.52  1.0
  Ce  Ce4  1  0.46  0.35  0.52  1.0
  Ce  Ce5  1  0.54  0.35  0.52  1.0
  Se  Se6  1  0.0  0.99  0.43  1.0
  Se  Se7  1  0.93  0.5  0.43  1.0
  Se  Se8  1  0.07  0.5  0.43  1.0
  Se  Se9  1  0.97  0.25  0.86  1.0
  Se  Se10  1  0.83  0.75  0.86  1.0
  Se  Se11  1  0.2  0.01  0.86  1.0
  Se  Se12  1  0.8  0.01  0.86  1.0
  Se  Se13  1  0.17  0.75  0.86  1.0
  Se  Se14  1  0.03  0.25  0.86  1.0
  Se  Se15  1  0.0  0.01  0.86  1.0
  Se  Se16  1  0.07  0.5  0.86  1.0
  Se  Se17  1  0.93  0.5  0.86  1.0

What is the crystal system of this material?