<|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_Ca3Co
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.94
_cell_length_b   6.94
_cell_length_c   10.86
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ca3Co
_chemical_formula_sum   'Ca12 Co4'
_cell_volume   452.75
_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
  Ca  Ca0  1  0.27  0.0  0.43  1.0
  Ca  Ca1  1  0.27  0.0  0.0  1.0
  Ca  Ca2  1  0.73  0.0  0.43  1.0
  Ca  Ca3  1  0.47  0.0  0.43  1.0
  Ca  Ca4  1  0.47  0.0  0.0  1.0
  Ca  Ca5  1  0.73  0.0  0.0  1.0
  Ca  Ca6  1  0.84  0.07  0.15  1.0
  Ca  Ca7  1  0.63  0.94  0.72  1.0
  Ca  Ca8  1  0.16  0.07  0.15  1.0
  Ca  Ca9  1  0.0  0.88  0.15  1.0
  Ca  Ca10  1  0.47  0.13  0.72  1.0
  Ca  Ca11  1  0.31  0.94  0.72  1.0
  Co  Co12  1  0.0  0.0  0.43  1.0
  Co  Co13  1  0.0  0.0  0.0  1.0
  Co  Co14  1  0.47  0.0  0.15  1.0
  Co  Co15  1  0.0  0.01  0.72  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_Ca3Co
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.94
_cell_length_b   6.94
_cell_length_c   10.86
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ca3Co
_chemical_formula_sum   'Ca12 Co4'
_cell_volume   452.75
_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
  Ca  Ca0  1  0.27  0.0  0.43  1.0
  Ca  Ca1  1  0.27  0.0  0.0  1.0
  Ca  Ca2  1  0.73  0.0  0.43  1.0
  Ca  Ca3  1  0.47  0.0  0.43  1.0
  Ca  Ca4  1  0.47  0.0  0.0  1.0
  Ca  Ca5  1  0.73  0.0  0.0  1.0
  Ca  Ca6  1  0.84  0.07  0.15  1.0
  Ca  Ca7  1  0.63  0.94  0.72  1.0
  Ca  Ca8  1  0.16  0.07  0.15  1.0
  Ca  Ca9  1  0.0  0.88  0.15  1.0
  Ca  Ca10  1  0.47  0.13  0.72  1.0
  Ca  Ca11  1  0.31  0.94  0.72  1.0
  Co  Co12  1  0.0  0.0  0.43  1.0
  Co  Co13  1  0.0  0.0  0.0  1.0
  Co  Co14  1  0.47  0.0  0.15  1.0
  Co  Co15  1  0.0  0.01  0.72  1.0

What is the crystal system of this material?