ach_na_ja das ist
ach na ja das ist .
 a x WORD_BOUNDARY n ɑː WORD_BOUNDARY j ɑː WORD_BOUNDARY d a s WORD_BOUNDARY  ɪ s t WORD_BOUNDARY
a c h WORD_BOUNDARY n a WORD_BOUNDARY j a WORD_BOUNDARY d a s WORD_BOUNDARY i s t WORD_BOUNDARY