ara ame ni naru iwanakatta
ara ame ni naru iwanakatta .
a r a WORD_BOUNDARY a m e WORD_BOUNDARY n i WORD_BOUNDARY n a r ɯ WORD_BOUNDARY i w a n a k a t t a WORD_BOUNDARY
a r a WORD_BOUNDARY a m e WORD_BOUNDARY n i WORD_BOUNDARY n a r u WORD_BOUNDARY i w a n a k a t t a WORD_BOUNDARY