Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.

Ex Input:
Question: Is human endogenous retrovirus ( HERV ) expression induced by treatment with the histone deacetylase ( HDAC ) inhibitors in cellular models of HIV-1 latency?
Answer: We show that HDAC inhibitors did not substantially increase the transcription of the analysed HERV env or pol genes, suggesting that histone acetylation is not crucial for controlling HERV expression in these experimental models and in ex vivo primary human T cells. Importantly, this indicates that unwanted HERV expression does not appear to be a barrier to the use of HDAC inhibitors in HIV-1 cure strategies.

Ex Output:
no


Ex Input:
Question: Do increased homocysteine levels exist in women with preeclampsia from early pregnancy?
Answer: Our results indicate that higher homocysteine levels exist in women with PE from early pregnancy and continue till delivery.

Ex Output:
yes


Ex Input:
Question: Does taurine supplementation decrease homocysteine levels and liver injury induced by a choline-deficient diet?
Answer: Taurine supplementation failed to ameliorate impaired Hcy metabolism and liver injury caused by CDD intake.

Ex Output:

no