was hast du denn an
was hast du denn an ?
v a s WORD_BOUNDARY h a s t WORD_BOUNDARY d uː WORD_BOUNDARY d ɛ n WORD_BOUNDARY  a n WORD_BOUNDARY
w a s WORD_BOUNDARY h a s t WORD_BOUNDARY d u WORD_BOUNDARY d e n n WORD_BOUNDARY a n WORD_BOUNDARY