is his blanket dirty
be his blanket dirt
aux det:poss n adj
is his blanket dirty ?
ɪ z WORD_BOUNDARY h ɪ z WORD_BOUNDARY b l æ ŋ k ɪ t WORD_BOUNDARY d ɜː ɾ i WORD_BOUNDARY
i s WORD_BOUNDARY h i s WORD_BOUNDARY b l a n k e t WORD_BOUNDARY d i r t y WORD_BOUNDARY