was soll der untersuchen
was sollen der suchen
pro mod pro v
was soll der untersuchen ?
v a s WORD_BOUNDARY z ɔ l WORD_BOUNDARY d ɛ ɐ WORD_BOUNDARY  ʊ n t ɐ z uː x ə n WORD_BOUNDARY
w a s WORD_BOUNDARY s o l l WORD_BOUNDARY d e r WORD_BOUNDARY u n t e r s u c h e n WORD_BOUNDARY