das is eine eisenbahn
das is eine eisenbahn ?
d a s WORD_BOUNDARY  iː s WORD_BOUNDARY  aɪ n ə WORD_BOUNDARY  aɪ z ə n b aː n WORD_BOUNDARY
d a s WORD_BOUNDARY i s WORD_BOUNDARY e i n e WORD_BOUNDARY e i s e n b a h n WORD_BOUNDARY