der isst was da oben
der essen was da oben
pro v pro adv adv
der isst was da oben ?
d ɛ ɾ WORD_BOUNDARY  ɪ s t WORD_BOUNDARY v a s WORD_BOUNDARY d ɑː WORD_BOUNDARY  oː b ə n WORD_BOUNDARY
d e r WORD_BOUNDARY i s s t WORD_BOUNDARY w a s WORD_BOUNDARY d a WORD_BOUNDARY o b e n WORD_BOUNDARY