def convert_conflict_merge(conflict_merge_preference):
    """
    convert between user, generated, interactive to first, second, interactive options
    :param conflict_merge_preference: conflict merge pref from command line
    :return: the conflict merge preference that dictionary merging will understand
    """
    if conflict_merge_preference == "user":
        return "first"
    elif conflict_merge_preference == "generated":
        return "second"
    elif conflict_merge_preference == "interactive":
        return "interactive"