def METHOD_NAME(text):
  """
  preprocess separates the text into question and context
  by splitting on semi-colon.
  Args:
      text (str): string with question and context separated by semi-colon.
  Yields:
      (str, str): yields question and context from text.
  """
  if len(text.strip()) > 0:
    question, context = text.split(';')
    yield (question, context)