<|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_Ce2Fe20Si2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.37
_cell_length_b   7.76
_cell_length_c   7.78
_cell_angle_alpha   81.5
_cell_angle_beta   66.03
_cell_angle_gamma   65.8
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ce2Fe20Si2C
_chemical_formula_sum   'Ce2 Fe20 Si2 C1'
_cell_volume   320.27
_cell_formula_units_Z   1
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  0.18  0.76  0.78  1.0
  Ce  Ce1  1  0.53  0.16  0.32  1.0
  Fe  Fe2  1  0.75  0.19  0.31  1.0
  Fe  Fe3  1  0.95  0.73  0.8  1.0
  Fe  Fe4  1  0.51  0.9  0.73  1.0
  Fe  Fe5  1  0.54  0.68  1.0  1.0
  Fe  Fe6  1  0.93  0.46  0.38  1.0
  Fe  Fe7  1  0.9  0.23  0.54  1.0
  Fe  Fe8  1  0.41  0.82  0.6  1.0
  Fe  Fe9  1  0.41  0.44  0.85  1.0
  Fe  Fe10  1  0.78  0.15  0.09  1.0
  Fe  Fe11  1  0.81  0.04  0.26  1.0
  Fe  Fe12  1  0.2  0.02  0.37  1.0
  Fe  Fe13  1  0.17  0.24  0.11  1.0
  Fe  Fe14  1  0.78  0.46  0.72  1.0
  Fe  Fe15  1  0.81  0.69  0.56  1.0
  Fe  Fe16  1  0.29  0.1  0.51  1.0
  Fe  Fe17  1  0.3  0.48  0.26  1.0
  Fe  Fe18  1  0.93  0.77  0.01  1.0
  Fe  Fe19  1  0.89  0.88  0.84  1.0
  Fe  Fe20  1  0.18  0.0  0.0  1.0
  Fe  Fe21  1  0.78  0.54  0.0  1.0
  Si  Si22  1  0.76  0.92  0.55  1.0
  Si  Si23  1  0.17  0.46  0.55  1.0
  C  C24  1  0.0  0.0  0.0  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_Ce2Fe20Si2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.37
_cell_length_b   7.76
_cell_length_c   7.78
_cell_angle_alpha   81.5
_cell_angle_beta   66.03
_cell_angle_gamma   65.8
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ce2Fe20Si2C
_chemical_formula_sum   'Ce2 Fe20 Si2 C1'
_cell_volume   320.27
_cell_formula_units_Z   1
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  0.18  0.76  0.78  1.0
  Ce  Ce1  1  0.53  0.16  0.32  1.0
  Fe  Fe2  1  0.75  0.19  0.31  1.0
  Fe  Fe3  1  0.95  0.73  0.8  1.0
  Fe  Fe4  1  0.51  0.9  0.73  1.0
  Fe  Fe5  1  0.54  0.68  1.0  1.0
  Fe  Fe6  1  0.93  0.46  0.38  1.0
  Fe  Fe7  1  0.9  0.23  0.54  1.0
  Fe  Fe8  1  0.41  0.82  0.6  1.0
  Fe  Fe9  1  0.41  0.44  0.85  1.0
  Fe  Fe10  1  0.78  0.15  0.09  1.0
  Fe  Fe11  1  0.81  0.04  0.26  1.0
  Fe  Fe12  1  0.2  0.02  0.37  1.0
  Fe  Fe13  1  0.17  0.24  0.11  1.0
  Fe  Fe14  1  0.78  0.46  0.72  1.0
  Fe  Fe15  1  0.81  0.69  0.56  1.0
  Fe  Fe16  1  0.29  0.1  0.51  1.0
  Fe  Fe17  1  0.3  0.48  0.26  1.0
  Fe  Fe18  1  0.93  0.77  0.01  1.0
  Fe  Fe19  1  0.89  0.88  0.84  1.0
  Fe  Fe20  1  0.18  0.0  0.0  1.0
  Fe  Fe21  1  0.78  0.54  0.0  1.0
  Si  Si22  1  0.76  0.92  0.55  1.0
  Si  Si23  1  0.17  0.46  0.55  1.0
  C  C24  1  0.0  0.0  0.0  1.0

What is the crystal system of this material?