aa tontontonton tte nobotte
aa tontontonton tte nobotte .
aː WORD_BOUNDARY t o n t o n t o n t o n WORD_BOUNDARY t t e WORD_BOUNDARY n o b o t t e WORD_BOUNDARY
a a WORD_BOUNDARY t o n t o n t o n t o n WORD_BOUNDARY t t e WORD_BOUNDARY n o b o t t e WORD_BOUNDARY