ninna+nanna ninna+nanna
ninna nanna ninna nanna .
n i n n ɐ WORD_BOUNDARY n ɐ n n ɐ WORD_BOUNDARY n i n n ɐ WORD_BOUNDARY n ɐ n n ɐ WORD_BOUNDARY
n i n n a WORD_BOUNDARY n a n n a WORD_BOUNDARY n i n n a WORD_BOUNDARY n a n n a WORD_BOUNDARY . WORD_BOUNDARY