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_25016555_5 (blocks VARCHAR, assists VARCHAR)
  ### Question:
  When 21 is the number of assists how many sets of blocks are there?
  ### Answer:
  SELECT COUNT(blocks) FROM table_25016555_5 WHERE assists = 21