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_13663434_1 (na__350_ VARCHAR, title_and_source VARCHAR)
  ### Question:
   how many na -350- with title and source being bokumo sekai wo sukuitai: battle tournament
  ### Answer:
  SELECT COUNT(na__350_) FROM table_13663434_1 WHERE title_and_source = "Bokumo Sekai wo Sukuitai: Battle Tournament"