def get_first_word(tabbed_info):
    """
    Get the first word in a sentence, this is useful when
    we want to get file type, for instance,
    >> get_first_word('bigBed 6 +') will return 'bigBed'
    :param tabbed_info: the string (e.g. 'bigBed 6 +')
    :returns: the first word in the string
    """
    return tabbed_info.rstrip('\n').split(' ')[0]