who's standing up holding on
who stand up hold on
pro:rel part adv part adv
who's standing up holding on ?
h uː z WORD_BOUNDARY s t æ n d ɪ ŋ WORD_BOUNDARY ʌ p WORD_BOUNDARY h oʊ l d ɪ ŋ WORD_BOUNDARY ɔ n WORD_BOUNDARY
w h o ' s WORD_BOUNDARY s t a n d i n g WORD_BOUNDARY u p WORD_BOUNDARY h o l d i n g WORD_BOUNDARY o n WORD_BOUNDARY