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: Does peroxiredoxin II negatively regulate lipopolysaccharide-induced osteoclast formation and bone loss via JNK and STAT3?
Answer: We suggest that PrxII could be useful in the development of a novel target for inflammatory bone loss.

Ex Output:
yes


Ex Input:
Question: Does ginsenoside Rg3 improve erectile function in streptozotocin-induced diabetic rats?
Answer: Oral gavage with Rg3 appears to both prevent degeneration of neurons in the dorsal nerves and exert an antioxidant effect in the corpus cavernosum of rats.

Ex Output:
yes


Ex Input:
Question: Does alpha 7 nicotinic acetylcholine receptor agonist GTS-21 mitigate isoflurane-induced cognitive impairment in aged rats?
Answer: The study demonstrated that pretreatment with α7 nicotinic acetylcholine receptor agonist GTS-21 attenuates isoflurane-induced learning and memory impairment in aged rats.

Ex Output:

yes