text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_name_67 (crystal_structure VARCHAR, no_of_cu_o_planes_in_unit_cell VARCHAR, t_c__k_ VARCHAR)
  ### Question:
  Which crystal structures has a Tc(K) of 110 and the number of Cu-O planes in the unit cell is 3?
  ### Answer:
  SELECT crystal_structure FROM table_name_67 WHERE no_of_cu_o_planes_in_unit_cell = 3 AND t_c__k_ = 110