ara ame ga futte kita
ara ame ga futte kita .
a r a WORD_BOUNDARY a m e WORD_BOUNDARY g a WORD_BOUNDARY ɸ ɯ t t e WORD_BOUNDARY k i t a WORD_BOUNDARY
a r a WORD_BOUNDARY a m e WORD_BOUNDARY g a WORD_BOUNDARY f u t t e WORD_BOUNDARY k i t a WORD_BOUNDARY