Kerstin was ist 'n das
kerstin was ist 'n das ?
k ɛ ɐ s t ɪ n WORD_BOUNDARY v a s WORD_BOUNDARY  ɪ s t WORD_BOUNDARY  ɛ n WORD_BOUNDARY d a s WORD_BOUNDARY
k e r s t i n WORD_BOUNDARY w a s WORD_BOUNDARY i s t WORD_BOUNDARY ' n WORD_BOUNDARY d a s WORD_BOUNDARY