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_16 (Id VARCHAR)
  ### Question:
  Which 2008 had a 1998 and 2006 that were a when 2009 was sf?
  ### Answer:
  SELECT 2008 FROM table_name_16 WHERE 1998 = "a" AND 2009 = "sf" AND 2006 = "a"