def get_simple_rl_task_names(task_names: list) -> list:
    """Simplifies the task name.

    For each task name in the provided list, this function splits the names using an underscore as
    delimiter, then returns the last element in the split list as the simplified name.

    Args:
        task_names (list): The list of task names to simplify.

    Returns:
        list: The list of simplified task names.
    """

    simple_names = []

    for t in task_names:
        splits = str.split(t, "_")
        simple_names.append(splits[-1].lower())

    return simple_names