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_61 (builder’s_model VARCHAR, service VARCHAR, prr_class VARCHAR)
  ### Question:
  What was the model for PRR class of gf28a freight?
  ### Answer:
  SELECT builder’s_model FROM table_name_61 WHERE service = "freight" AND prr_class = "gf28a"