ach das muss erst essen
ach das muss erst essen .
 a x WORD_BOUNDARY d a s WORD_BOUNDARY m ʊ s WORD_BOUNDARY  eː ɾ s t WORD_BOUNDARY  ɛ s ə n WORD_BOUNDARY
a c h WORD_BOUNDARY d a s WORD_BOUNDARY m u s s WORD_BOUNDARY e r s t WORD_BOUNDARY e s s e n WORD_BOUNDARY