na Kerstin was machst 'n du
na kerstin was machst 'n du ?
n ɑː WORD_BOUNDARY k ɛ ɾ s t ɪ n WORD_BOUNDARY v a s WORD_BOUNDARY m a x s t WORD_BOUNDARY  ɛ n WORD_BOUNDARY d uː WORD_BOUNDARY
n a WORD_BOUNDARY k e r s t i n WORD_BOUNDARY w a s WORD_BOUNDARY m a c h s t WORD_BOUNDARY ' n WORD_BOUNDARY d u WORD_BOUNDARY