wen rufst du denn an
wen rufst du denn an .
v eː n WORD_BOUNDARY r uː f s t WORD_BOUNDARY d uː WORD_BOUNDARY d ɛ n WORD_BOUNDARY  a n WORD_BOUNDARY
w e n WORD_BOUNDARY r u f s t WORD_BOUNDARY d u WORD_BOUNDARY d e n n WORD_BOUNDARY a n WORD_BOUNDARY