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_75 (prefix VARCHAR, formula VARCHAR)
  ### Question:
  What is the prefix for the formula of Rsor'?
  ### Answer:
  SELECT prefix FROM table_name_75 WHERE formula = "rsor'"