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_12 (class VARCHAR, erp_w VARCHAR)
  ### Question:
  What is the class for the ERP W of 500?
  ### Answer:
  SELECT class FROM table_name_12 WHERE erp_w = 500