def decode_word_two(word, mask):
    """
    Decodes the second word in the standard 4 word header.
    :param word: The word that we're going to decode.
    :param mask: The mask we'll use to decode that word.
    :return: A dictionary containing the decoded information
    """
    return {
        'event_time_high': (word & mask.event_time_high()[0]) >> mask.event_time_high()[1],
        'cfd_fractional_time': (word & mask.cfd_fractional_time()[0]) >>
                               mask.cfd_fractional_time()[1],
        'cfd_trigger_source_bit': (word & mask.cfd_trigger_source()[0]) >>
                                  mask.cfd_trigger_source()[1],
        'cfd_forced_trigger_bit': (word & mask.cfd_forced_trigger()[0]) >>
                                  mask.cfd_forced_trigger()[1]
    }