yoru ni narimashita
yoru ni nar
n v:cop v:c
yoru ni narimashita .
j o r ɯ WORD_BOUNDARY n i WORD_BOUNDARY n a r i m a ʃ i t a WORD_BOUNDARY
y o r u WORD_BOUNDARY n i WORD_BOUNDARY n a r i m a s h i t a WORD_BOUNDARY