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_81 (world_rank VARCHAR, year VARCHAR)
  ### Question:
  Which World Rank happened in 1977?
  ### Answer:
  SELECT world_rank FROM table_name_81 WHERE year = 1977