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_21761882_4 (location VARCHAR, opponent VARCHAR)
  ### Question:
  What was the location for when the opponent was @ roughriders?
  ### Answer:
  SELECT location FROM table_21761882_4 WHERE opponent = "@ Roughriders"