def remove_duplicates(address):
    """
    Removes duplicate prefix and postfixes from address string
    :param address: string - The address being evaluated
    :return: string
    """
    list_of_duplicates = {
        "N N": "N",
        "S S": "S",
        "E E": "E",
        "W W": "W",
        "DR DR": "DR",
        "LN LN": "LN",
        "ST ST": "ST",
        "RD RD": "RD",
        "BLVD BLVD": "BLVD",
        " ,": ",",
        "  ": " ",
    }

    for k, v in list_of_duplicates.items():
        address = address.replace(k, v).strip()

    return address