ach du bist doch doof
ach du bist doch doof .
 a x WORD_BOUNDARY d uː WORD_BOUNDARY b ɪ s t WORD_BOUNDARY d ɔ x WORD_BOUNDARY d oː f WORD_BOUNDARY
a c h WORD_BOUNDARY d u WORD_BOUNDARY b i s t WORD_BOUNDARY d o c h WORD_BOUNDARY d o o f WORD_BOUNDARY