gestern war es heiß
gestern war es heiß .
ɡ ɛ s t ɐ n WORD_BOUNDARY v aː ɐ WORD_BOUNDARY  ɛ s WORD_BOUNDARY h aɪ s WORD_BOUNDARY
g e s t e r n WORD_BOUNDARY w a r WORD_BOUNDARY e s WORD_BOUNDARY h e i ß WORD_BOUNDARY