pen doko ni aru no
pen doko ni aru no ?
p e n WORD_BOUNDARY d o k o WORD_BOUNDARY n i WORD_BOUNDARY a r ɯ WORD_BOUNDARY n o WORD_BOUNDARY
p e n WORD_BOUNDARY d o k o WORD_BOUNDARY n i WORD_BOUNDARY a r u WORD_BOUNDARY n o WORD_BOUNDARY