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_21481509_4 (COUnT VARCHAR, population VARCHAR)
  ### Question:
  How many n are listed for berbers from siwa?
  ### Answer:
  SELECT COUnT AS n FROM table_21481509_4 WHERE population = "Berbers from Siwa"