nein nein nein nein
nein nein nein nein .
n a ɪ n WORD_BOUNDARY n a ɪ n WORD_BOUNDARY n a ɪ n WORD_BOUNDARY n a ɪ n WORD_BOUNDARY
n e i n WORD_BOUNDARY n e i n WORD_BOUNDARY n e i n WORD_BOUNDARY n e i n WORD_BOUNDARY . WORD_BOUNDARY