he's in his grandmother's
he in his mother
pro:sub prep det:poss n
he's in his grandmother's ?
h iː z WORD_BOUNDARY ɪ n WORD_BOUNDARY h ɪ z WORD_BOUNDARY ɡ ɹ æ n d m ʌ ð ɚ z WORD_BOUNDARY
h e ' s WORD_BOUNDARY i n WORD_BOUNDARY h i s WORD_BOUNDARY g r a n d m o t h e r ' s WORD_BOUNDARY