<|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_Be2FeCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.84
_cell_length_b   3.84
_cell_length_c   3.84
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be2FeCu
_chemical_formula_sum   'Be2 Fe1 Cu1'
_cell_volume   40.19
_cell_formula_units_Z   1
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
  Be  Be0  1  0.36  0.36  0.36  1.0
  Be  Be1  1  0.0  0.0  0.0  1.0
  Fe  Fe3  1  0.72  0.72  0.72  1.0
  Cu  Cu2  1  0.08  0.08  0.08  1.0

What is the crystal system of this material?<|im_end|>
<|im_start|>assistant
Given the following CIF representation:
data_Be2FeCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.84
_cell_length_b   3.84
_cell_length_c   3.84
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be2FeCu
_chemical_formula_sum   'Be2 Fe1 Cu1'
_cell_volume   40.19
_cell_formula_units_Z   1
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
  Be  Be0  1  0.36  0.36  0.36  1.0
  Be  Be1  1  0.0  0.0  0.0  1.0
  Fe  Fe3  1  0.72  0.72  0.72  1.0
  Cu  Cu2  1  0.08  0.08  0.08  1.0

What is the crystal system of this material?