bist an der Kasse ja
bist an der kasse ja ?
b ɪ s t WORD_BOUNDARY  a n WORD_BOUNDARY d ɛ ɐ WORD_BOUNDARY k a s ə WORD_BOUNDARY j aː WORD_BOUNDARY
b i s t WORD_BOUNDARY a n WORD_BOUNDARY d e r WORD_BOUNDARY k a s s e WORD_BOUNDARY j a WORD_BOUNDARY