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_4 (date VARCHAR, event VARCHAR, acts VARCHAR, year VARCHAR)
  ### Question:
  Tell me the date for acts of 6 bands and year larger than 1981 for monsters of rock
  ### Answer:
  SELECT date FROM table_name_4 WHERE acts = "6 bands" AND year > 1981 AND event = "monsters of rock"