nanna nanna nanna nanna
nanna nanna nanna nanna .
n ɐ n n ɐ WORD_BOUNDARY n ɐ n n ɐ WORD_BOUNDARY n ɐ n n ɐ WORD_BOUNDARY n ɐ n n ɐ WORD_BOUNDARY
n a n n a WORD_BOUNDARY n a n n a WORD_BOUNDARY n a n n a WORD_BOUNDARY n a n n a WORD_BOUNDARY . WORD_BOUNDARY