def create_lm_sequence(dp_json):
    """
  Input: a JSON loaded from one of the `lean_step` JSONlines-formatted datasets
  Output: A string for language modelling.
  """
    (prompt_keyword, prompt_text), (completion_keyword, completion_text) = list(dp_json.items())
    prompt = prompt_keyword.upper() + " " + str(prompt_text)
    completion = completion_keyword.upper() + " " + str(completion_text)
    return prompt + " " + completion