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_29 (size_difference VARCHAR, prefix VARCHAR)
  ### Question:
  What is the size difference for exa?
  ### Answer:
  SELECT size_difference FROM table_name_29 WHERE prefix = "exa"