a dondoko dondoko dondoko dondoko
a dondoko dondoko dondoko dondoko .
a WORD_BOUNDARY d o n d o k o WORD_BOUNDARY d o n d o k o WORD_BOUNDARY d o n d o k o WORD_BOUNDARY d o n d o k o WORD_BOUNDARY
a WORD_BOUNDARY d o n d o k o WORD_BOUNDARY d o n d o k o WORD_BOUNDARY d o n d o k o WORD_BOUNDARY d o n d o k o WORD_BOUNDARY