a ookii happa tte koto
a ookii happa tte koto ?
a WORD_BOUNDARY oː k i i WORD_BOUNDARY h a p p a WORD_BOUNDARY t t e WORD_BOUNDARY k o t o WORD_BOUNDARY
a WORD_BOUNDARY o o k i i WORD_BOUNDARY h a p p a WORD_BOUNDARY t t e WORD_BOUNDARY k o t o WORD_BOUNDARY