the sisters knocked at the door
the sister knock at the door
det:art n v prep det:art n
the sisters knocked at the door .
ð ə WORD_BOUNDARY s ɪ s t ɚ z WORD_BOUNDARY n ɑː k t WORD_BOUNDARY æ t WORD_BOUNDARY ð ə WORD_BOUNDARY d oː ɹ WORD_BOUNDARY
t h e WORD_BOUNDARY s i s t e r s WORD_BOUNDARY k n o c k e d WORD_BOUNDARY a t WORD_BOUNDARY t h e WORD_BOUNDARY d o o r WORD_BOUNDARY