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_15 (solidat__ INTEGER, purpose VARCHAR, hardness___brinell__ VARCHAR)
  ### Question:
  What is the sum of Solidat (c) that's purpose is display type, heavy duty jobs, and a hardness (brinell) is smaller than 33?
  ### Answer:
  SELECT SUM(solidat__) AS °c_ FROM table_name_15 WHERE purpose = "display type, heavy duty jobs" AND hardness___brinell__ < 33