wakannai n da kara
wakar no da kara
v:c n:fml v:cop ptl:conj
wakannai n da kara .
w a k a n n a i WORD_BOUNDARY n WORD_BOUNDARY d a WORD_BOUNDARY k a r a WORD_BOUNDARY
w a k a n n a i WORD_BOUNDARY n WORD_BOUNDARY d a WORD_BOUNDARY k a r a WORD_BOUNDARY