butterfly I don't know
butterfly i don't know .
b ʌ ɾ ɚ f l aɪ WORD_BOUNDARY aɪ WORD_BOUNDARY d oʊ n t WORD_BOUNDARY n oʊ WORD_BOUNDARY
b u t t e r f l y WORD_BOUNDARY i WORD_BOUNDARY d o n ' t WORD_BOUNDARY k n o w WORD_BOUNDARY