<|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_Sr4SnN4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.1
_cell_length_b   3.84
_cell_length_c   17.17
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr4SnN4
_chemical_formula_sum   'Sr16 Sn4 N16'
_cell_volume   862.72
_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
  Sr  Sr0  1  0.19  0.96  0.5  1.0
  Sr  Sr1  1  0.64  0.96  0.25  1.0
  Sr  Sr2  1  0.91  0.88  0.67  1.0
  Sr  Sr3  1  0.45  0.88  0.91  1.0
  Sr  Sr4  1  0.19  0.96  0.02  1.0
  Sr  Sr5  1  0.64  0.96  0.57  1.0
  Sr  Sr6  1  0.91  0.88  0.15  1.0
  Sr  Sr7  1  0.45  0.88  0.6  1.0
  Sr  Sr8  1  0.83  0.96  0.94  1.0
  Sr  Sr9  1  0.28  0.96  0.81  1.0
  Sr  Sr10  1  0.27  0.88  0.23  1.0
  Sr  Sr11  1  0.82  0.88  0.36  1.0
  Sr  Sr12  1  0.0  0.96  0.84  1.0
  Sr  Sr13  1  0.45  0.96  0.74  1.0
  Sr  Sr14  1  0.1  0.88  0.32  1.0
  Sr  Sr15  1  0.64  0.88  0.43  1.0
  Sn  Sn16  1  0.95  0.96  0.29  1.0
  Sn  Sn17  1  0.4  0.96  0.29  1.0
  Sn  Sn18  1  0.15  0.88  0.87  1.0
  Sn  Sn19  1  0.7  0.88  0.88  1.0
  N  N20  1  0.84  0.96  0.53  1.0
  N  N21  1  0.39  0.96  0.06  1.0
  N  N22  1  0.26  0.88  0.64  1.0
  N  N23  1  0.71  0.88  0.11  1.0
  N  N24  1  0.11  0.96  0.83  1.0
  N  N25  1  0.66  0.96  0.92  1.0
  N  N26  1  0.99  0.88  0.34  1.0
  N  N27  1  0.44  0.88  0.24  1.0
  N  N28  1  0.58  0.96  0.49  1.0
  N  N29  1  0.03  0.96  0.09  1.0
  N  N30  1  0.52  0.88  0.67  1.0
  N  N31  1  0.07  0.88  0.08  1.0
  N  N32  1  0.38  0.96  0.8  1.0
  N  N33  1  0.83  0.96  0.95  1.0
  N  N34  1  0.72  0.88  0.37  1.0
  N  N35  1  0.27  0.88  0.22  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_Sr4SnN4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.1
_cell_length_b   3.84
_cell_length_c   17.17
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr4SnN4
_chemical_formula_sum   'Sr16 Sn4 N16'
_cell_volume   862.72
_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
  Sr  Sr0  1  0.19  0.96  0.5  1.0
  Sr  Sr1  1  0.64  0.96  0.25  1.0
  Sr  Sr2  1  0.91  0.88  0.67  1.0
  Sr  Sr3  1  0.45  0.88  0.91  1.0
  Sr  Sr4  1  0.19  0.96  0.02  1.0
  Sr  Sr5  1  0.64  0.96  0.57  1.0
  Sr  Sr6  1  0.91  0.88  0.15  1.0
  Sr  Sr7  1  0.45  0.88  0.6  1.0
  Sr  Sr8  1  0.83  0.96  0.94  1.0
  Sr  Sr9  1  0.28  0.96  0.81  1.0
  Sr  Sr10  1  0.27  0.88  0.23  1.0
  Sr  Sr11  1  0.82  0.88  0.36  1.0
  Sr  Sr12  1  0.0  0.96  0.84  1.0
  Sr  Sr13  1  0.45  0.96  0.74  1.0
  Sr  Sr14  1  0.1  0.88  0.32  1.0
  Sr  Sr15  1  0.64  0.88  0.43  1.0
  Sn  Sn16  1  0.95  0.96  0.29  1.0
  Sn  Sn17  1  0.4  0.96  0.29  1.0
  Sn  Sn18  1  0.15  0.88  0.87  1.0
  Sn  Sn19  1  0.7  0.88  0.88  1.0
  N  N20  1  0.84  0.96  0.53  1.0
  N  N21  1  0.39  0.96  0.06  1.0
  N  N22  1  0.26  0.88  0.64  1.0
  N  N23  1  0.71  0.88  0.11  1.0
  N  N24  1  0.11  0.96  0.83  1.0
  N  N25  1  0.66  0.96  0.92  1.0
  N  N26  1  0.99  0.88  0.34  1.0
  N  N27  1  0.44  0.88  0.24  1.0
  N  N28  1  0.58  0.96  0.49  1.0
  N  N29  1  0.03  0.96  0.09  1.0
  N  N30  1  0.52  0.88  0.67  1.0
  N  N31  1  0.07  0.88  0.08  1.0
  N  N32  1  0.38  0.96  0.8  1.0
  N  N33  1  0.83  0.96  0.95  1.0
  N  N34  1  0.72  0.88  0.37  1.0
  N  N35  1  0.27  0.88  0.22  1.0

What is the crystal system of this material?