but I don't know who
but i don't know who .
b ʌ t WORD_BOUNDARY aɪ WORD_BOUNDARY d oʊ n t WORD_BOUNDARY n oʊ WORD_BOUNDARY h uː WORD_BOUNDARY
b u t WORD_BOUNDARY i WORD_BOUNDARY d o n ' t WORD_BOUNDARY k n o w WORD_BOUNDARY w h o WORD_BOUNDARY