was ist der Tunnel
was sein der Tunnel
was ist der tunnel ?
v a s WORD_BOUNDARY  ɪ s t WORD_BOUNDARY d ɛ ɾ WORD_BOUNDARY t ʊ n ə l WORD_BOUNDARY
w a s WORD_BOUNDARY i s t WORD_BOUNDARY d e r WORD_BOUNDARY t u n n e l WORD_BOUNDARY