sonst ist er traurig
sonst ist er traurig .
z ɔ n s t WORD_BOUNDARY  ɪ s t WORD_BOUNDARY  ɛ ɐ WORD_BOUNDARY t ɐ aʊ ʀ ɪ ç WORD_BOUNDARY
s o n s t WORD_BOUNDARY i s t WORD_BOUNDARY e r WORD_BOUNDARY t r a u r i g WORD_BOUNDARY