wohin fährt er denn
wohin fahren er denn
pro:int v pro:per adv
wohin fährt er denn ?
v oː h iː n WORD_BOUNDARY f ɛː ɐ t WORD_BOUNDARY  ɛ ɐ WORD_BOUNDARY d ɛ n WORD_BOUNDARY
w o h i n WORD_BOUNDARY f ä h r t WORD_BOUNDARY e r WORD_BOUNDARY d e n n WORD_BOUNDARY