ach_so im Nachtzug
ach_so in
on prep
ach so im nachtzug .
 a x WORD_BOUNDARY z oː WORD_BOUNDARY  ɪ m WORD_BOUNDARY n a x ts uː k WORD_BOUNDARY
a c h WORD_BOUNDARY s o WORD_BOUNDARY i m WORD_BOUNDARY n a c h t z u g WORD_BOUNDARY