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_2638104_1 (channel VARCHAR, broadcast_area VARCHAR)
  ### Question:
  How many channels are there in the Greater Tokyo area?
  ### Answer:
  SELECT COUNT(channel) FROM table_2638104_1 WHERE broadcast_area = "Greater Tokyo"