ach ich bin ja dumm
ach ich bin ja dumm .
 a x WORD_BOUNDARY  ɪ ç WORD_BOUNDARY b ɪ n WORD_BOUNDARY j ɑː WORD_BOUNDARY d ʊ m WORD_BOUNDARY
a c h WORD_BOUNDARY i c h WORD_BOUNDARY b i n WORD_BOUNDARY j a WORD_BOUNDARY d u m m WORD_BOUNDARY