<|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_Ca2Nb2CoO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.02
_cell_length_b   10.02
_cell_length_c   5.48
_cell_angle_alpha   91.36
_cell_angle_beta   91.36
_cell_angle_gamma   37.05
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ca2Nb2CoO8
_chemical_formula_sum   'Ca4 Nb4 Co2 O16'
_cell_volume   331.47
_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
  Ca  Ca0  1  0.51  0.14  0.4  1.0
  Ca  Ca1  1  0.43  0.14  0.34  1.0
  Ca  Ca2  1  0.37  0.86  0.07  1.0
  Ca  Ca3  1  0.44  0.86  0.14  1.0
  Nb  Nb4  1  0.57  0.79  0.37  1.0
  Nb  Nb5  1  0.37  0.79  0.37  1.0
  Nb  Nb6  1  0.3  0.21  0.11  1.0
  Nb  Nb7  1  0.5  0.21  0.11  1.0
  Co  Co8  1  0.47  0.91  0.37  1.0
  Co  Co9  1  0.4  0.09  0.11  1.0
  O  O10  1  0.74  0.62  0.22  1.0
  O  O11  1  0.07  0.62  1.0  1.0
  O  O12  1  0.13  0.38  0.26  1.0
  O  O13  1  0.81  0.38  0.48  1.0
  O  O14  1  0.57  0.08  0.43  1.0
  O  O15  1  0.37  0.08  0.3  1.0
  O  O16  1  0.3  0.92  0.04  1.0
  O  O17  1  0.5  0.92  0.17  1.0
  O  O18  1  0.47  0.4  0.0  1.0
  O  O19  1  0.47  0.4  0.74  1.0
  O  O20  1  0.88  0.96  0.62  1.0
  O  O21  1  0.92  0.96  0.59  1.0
  O  O22  1  0.99  0.04  0.86  1.0
  O  O23  1  0.95  0.04  0.88  1.0
  O  O24  1  0.4  0.6  0.74  1.0
  O  O25  1  0.4  0.6  0.47  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_Ca2Nb2CoO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.02
_cell_length_b   10.02
_cell_length_c   5.48
_cell_angle_alpha   91.36
_cell_angle_beta   91.36
_cell_angle_gamma   37.05
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ca2Nb2CoO8
_chemical_formula_sum   'Ca4 Nb4 Co2 O16'
_cell_volume   331.47
_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
  Ca  Ca0  1  0.51  0.14  0.4  1.0
  Ca  Ca1  1  0.43  0.14  0.34  1.0
  Ca  Ca2  1  0.37  0.86  0.07  1.0
  Ca  Ca3  1  0.44  0.86  0.14  1.0
  Nb  Nb4  1  0.57  0.79  0.37  1.0
  Nb  Nb5  1  0.37  0.79  0.37  1.0
  Nb  Nb6  1  0.3  0.21  0.11  1.0
  Nb  Nb7  1  0.5  0.21  0.11  1.0
  Co  Co8  1  0.47  0.91  0.37  1.0
  Co  Co9  1  0.4  0.09  0.11  1.0
  O  O10  1  0.74  0.62  0.22  1.0
  O  O11  1  0.07  0.62  1.0  1.0
  O  O12  1  0.13  0.38  0.26  1.0
  O  O13  1  0.81  0.38  0.48  1.0
  O  O14  1  0.57  0.08  0.43  1.0
  O  O15  1  0.37  0.08  0.3  1.0
  O  O16  1  0.3  0.92  0.04  1.0
  O  O17  1  0.5  0.92  0.17  1.0
  O  O18  1  0.47  0.4  0.0  1.0
  O  O19  1  0.47  0.4  0.74  1.0
  O  O20  1  0.88  0.96  0.62  1.0
  O  O21  1  0.92  0.96  0.59  1.0
  O  O22  1  0.99  0.04  0.86  1.0
  O  O23  1  0.95  0.04  0.88  1.0
  O  O24  1  0.4  0.6  0.74  1.0
  O  O25  1  0.4  0.6  0.47  1.0

What is the crystal system of this material?