zitten er al mensen in de trein
zitten er al mensen in de trein ?
z ɪ t ə n WORD_BOUNDARY  ə r WORD_BOUNDARY  ɑ l WORD_BOUNDARY m ɛ n s ə n WORD_BOUNDARY  ɪ n WORD_BOUNDARY d ə WORD_BOUNDARY t r ɛɪ n WORD_BOUNDARY
z i t t e n WORD_BOUNDARY e r WORD_BOUNDARY a l WORD_BOUNDARY m e n s e n WORD_BOUNDARY i n WORD_BOUNDARY d e WORD_BOUNDARY t r e i n WORD_BOUNDARY