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_90 (tonnage VARCHAR, built VARCHAR, ship VARCHAR)
  ### Question:
  The ship SSBergensfjord built before 1973 has what tonnage?
  ### Answer:
  SELECT tonnage FROM table_name_90 WHERE built < 1973 AND ship = "ssbergensfjord"