I bought paper cups
I buy paper cup
pro:sub v n n
i bought paper cups.
aɪ WORD_BOUNDARY b ɔ t WORD_BOUNDARY p eɪ p ə ɹ WORD_BOUNDARY k ʌ p s WORD_BOUNDARY
i WORD_BOUNDARY b o u g h t WORD_BOUNDARY p a p e r WORD_BOUNDARY c u p s . WORD_BOUNDARY