it's up to Mark
it up to Mark
pro:per adv prep n:prop
it's up to mark .
ɪ t s WORD_BOUNDARY ʌ p WORD_BOUNDARY t ə WORD_BOUNDARY m ɑː ɹ k WORD_BOUNDARY
i t ' s WORD_BOUNDARY u p WORD_BOUNDARY t o WORD_BOUNDARY m a r k WORD_BOUNDARY