<|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_KRu3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.73
_cell_length_b   5.73
_cell_length_c   4.51
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   102.33
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KRu3
_chemical_formula_sum   'K2 Ru6'
_cell_volume   144.47
_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
  K  K0  1  0.59  0.57  0.13  1.0
  K  K1  1  0.59  0.43  0.38  1.0
  Ru  Ru2  1  0.59  0.16  0.38  1.0
  Ru  Ru3  1  0.59  0.84  0.13  1.0
  Ru  Ru4  1  0.4  0.59  0.38  1.0
  Ru  Ru5  1  0.78  0.41  0.13  1.0
  Ru  Ru6  1  0.78  0.59  0.38  1.0
  Ru  Ru7  1  0.4  0.41  0.13  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_KRu3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.73
_cell_length_b   5.73
_cell_length_c   4.51
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   102.33
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KRu3
_chemical_formula_sum   'K2 Ru6'
_cell_volume   144.47
_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
  K  K0  1  0.59  0.57  0.13  1.0
  K  K1  1  0.59  0.43  0.38  1.0
  Ru  Ru2  1  0.59  0.16  0.38  1.0
  Ru  Ru3  1  0.59  0.84  0.13  1.0
  Ru  Ru4  1  0.4  0.59  0.38  1.0
  Ru  Ru5  1  0.78  0.41  0.13  1.0
  Ru  Ru6  1  0.78  0.59  0.38  1.0
  Ru  Ru7  1  0.4  0.41  0.13  1.0

What is the crystal system of this material?