was ist denn das Pfeifen
was ist denn das pfeifen ?
v a s WORD_BOUNDARY  ɪ s t WORD_BOUNDARY d ɛ n WORD_BOUNDARY d a s WORD_BOUNDARY pf aɪ f ə n WORD_BOUNDARY
w a s WORD_BOUNDARY i s t WORD_BOUNDARY d e n n WORD_BOUNDARY d a s WORD_BOUNDARY p f e i f e n WORD_BOUNDARY