I bought paper cups
I buy paper cup
pro:sub v n n
i bought paper cups .
aɪ WORD_BOUNDARY b ɔː t WORD_BOUNDARY p eɪ p ɚ 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