<|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_Mn4Si7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.48
_cell_length_b   5.48
_cell_length_c   17.28
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn4Si7
_chemical_formula_sum   'Mn16 Si28'
_cell_volume   518.24
_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
  Mn  Mn0  1  0.0  0.0  0.32  1.0
  Mn  Mn1  1  0.0  0.0  0.96  1.0
  Mn  Mn2  1  0.0  0.0  0.0  1.0
  Mn  Mn3  1  0.0  0.0  0.64  1.0
  Mn  Mn4  1  0.74  0.74  0.25  1.0
  Mn  Mn5  1  0.74  0.74  0.39  1.0
  Mn  Mn6  1  0.74  0.74  0.89  1.0
  Mn  Mn7  1  0.74  0.74  0.03  1.0
  Mn  Mn8  1  0.0  0.74  0.12  1.0
  Mn  Mn9  1  0.74  0.0  0.51  1.0
  Mn  Mn10  1  0.0  0.74  0.76  1.0
  Mn  Mn11  1  0.74  0.0  0.15  1.0
  Mn  Mn12  1  0.0  0.74  0.33  1.0
  Mn  Mn13  1  0.74  0.0  0.31  1.0
  Mn  Mn14  1  0.0  0.74  0.97  1.0
  Mn  Mn15  1  0.74  0.0  0.95  1.0
  Si  Si16  1  0.87  0.72  0.15  1.0
  Si  Si17  1  0.61  0.76  0.15  1.0
  Si  Si18  1  0.76  0.61  0.49  1.0
  Si  Si19  1  0.72  0.87  0.49  1.0
  Si  Si20  1  0.61  0.72  0.79  1.0
  Si  Si21  1  0.87  0.76  0.79  1.0
  Si  Si22  1  0.76  0.87  0.13  1.0
  Si  Si23  1  0.72  0.61  0.13  1.0
  Si  Si24  1  0.09  0.85  0.95  1.0
  Si  Si25  1  0.39  0.63  0.95  1.0
  Si  Si26  1  0.63  0.39  0.69  1.0
  Si  Si27  1  0.85  0.09  0.69  1.0
  Si  Si28  1  0.39  0.85  0.58  1.0
  Si  Si29  1  0.09  0.63  0.58  1.0
  Si  Si30  1  0.63  0.09  0.33  1.0
  Si  Si31  1  0.85  0.39  0.33  1.0
  Si  Si32  1  0.9  0.22  0.67  1.0
  Si  Si33  1  0.58  0.26  0.67  1.0
  Si  Si34  1  0.26  0.58  0.97  1.0
  Si  Si35  1  0.22  0.9  0.97  1.0
  Si  Si36  1  0.58  0.22  0.31  1.0
  Si  Si37  1  0.9  0.26  0.31  1.0
  Si  Si38  1  0.26  0.9  0.6  1.0
  Si  Si39  1  0.22  0.58  0.6  1.0
  Si  Si40  1  0.83  0.83  0.32  1.0
  Si  Si41  1  0.65  0.65  0.32  1.0
  Si  Si42  1  0.65  0.83  0.96  1.0
  Si  Si43  1  0.83  0.65  0.96  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_Mn4Si7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.48
_cell_length_b   5.48
_cell_length_c   17.28
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn4Si7
_chemical_formula_sum   'Mn16 Si28'
_cell_volume   518.24
_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
  Mn  Mn0  1  0.0  0.0  0.32  1.0
  Mn  Mn1  1  0.0  0.0  0.96  1.0
  Mn  Mn2  1  0.0  0.0  0.0  1.0
  Mn  Mn3  1  0.0  0.0  0.64  1.0
  Mn  Mn4  1  0.74  0.74  0.25  1.0
  Mn  Mn5  1  0.74  0.74  0.39  1.0
  Mn  Mn6  1  0.74  0.74  0.89  1.0
  Mn  Mn7  1  0.74  0.74  0.03  1.0
  Mn  Mn8  1  0.0  0.74  0.12  1.0
  Mn  Mn9  1  0.74  0.0  0.51  1.0
  Mn  Mn10  1  0.0  0.74  0.76  1.0
  Mn  Mn11  1  0.74  0.0  0.15  1.0
  Mn  Mn12  1  0.0  0.74  0.33  1.0
  Mn  Mn13  1  0.74  0.0  0.31  1.0
  Mn  Mn14  1  0.0  0.74  0.97  1.0
  Mn  Mn15  1  0.74  0.0  0.95  1.0
  Si  Si16  1  0.87  0.72  0.15  1.0
  Si  Si17  1  0.61  0.76  0.15  1.0
  Si  Si18  1  0.76  0.61  0.49  1.0
  Si  Si19  1  0.72  0.87  0.49  1.0
  Si  Si20  1  0.61  0.72  0.79  1.0
  Si  Si21  1  0.87  0.76  0.79  1.0
  Si  Si22  1  0.76  0.87  0.13  1.0
  Si  Si23  1  0.72  0.61  0.13  1.0
  Si  Si24  1  0.09  0.85  0.95  1.0
  Si  Si25  1  0.39  0.63  0.95  1.0
  Si  Si26  1  0.63  0.39  0.69  1.0
  Si  Si27  1  0.85  0.09  0.69  1.0
  Si  Si28  1  0.39  0.85  0.58  1.0
  Si  Si29  1  0.09  0.63  0.58  1.0
  Si  Si30  1  0.63  0.09  0.33  1.0
  Si  Si31  1  0.85  0.39  0.33  1.0
  Si  Si32  1  0.9  0.22  0.67  1.0
  Si  Si33  1  0.58  0.26  0.67  1.0
  Si  Si34  1  0.26  0.58  0.97  1.0
  Si  Si35  1  0.22  0.9  0.97  1.0
  Si  Si36  1  0.58  0.22  0.31  1.0
  Si  Si37  1  0.9  0.26  0.31  1.0
  Si  Si38  1  0.26  0.9  0.6  1.0
  Si  Si39  1  0.22  0.58  0.6  1.0
  Si  Si40  1  0.83  0.83  0.32  1.0
  Si  Si41  1  0.65  0.65  0.32  1.0
  Si  Si42  1  0.65  0.83  0.96  1.0
  Si  Si43  1  0.83  0.65  0.96  1.0

What is the crystal system of this material?