was kauft er da so
was kaufen er da so
pro v pro:per adv adv
was kauft er da so ?
v a s WORD_BOUNDARY k aʊ f t WORD_BOUNDARY  ɛ ɐ WORD_BOUNDARY d aː WORD_BOUNDARY z oː WORD_BOUNDARY
w a s WORD_BOUNDARY k a u f t WORD_BOUNDARY e r WORD_BOUNDARY d a WORD_BOUNDARY s o WORD_BOUNDARY