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_21584646_10 (champion VARCHAR, runner_up VARCHAR)
  ### Question:
  How many champions are shown for the runner-up of stefan edberg?
  ### Answer:
  SELECT COUNT(champion) FROM table_21584646_10 WHERE runner_up = "Stefan Edberg"