def clean_unicode(text):
    """A function to clean unsee unicode character like \\u2xxx
    Args:
        text (str): Can be news title or news body
    Returns:
        [str]: A unicode-free string
    """
    clean_text = text.encode("ascii", errors="replace").strip().decode("ascii")
    clean_text = clean_text.replace("?", ' ')
    return clean_text