tu mal den Mund auf
tu mal den mund auf .
t uː WORD_BOUNDARY m aː l WORD_BOUNDARY d eː n WORD_BOUNDARY m ʊ n t WORD_BOUNDARY  aʊ f WORD_BOUNDARY
t u WORD_BOUNDARY m a l WORD_BOUNDARY d e n WORD_BOUNDARY m u n d WORD_BOUNDARY a u f WORD_BOUNDARY