instruction:
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.
question:
Question: Is pKCε a negative regulator of PVAT-derived vessel formation?
Answer: PKCε negatively interferes with vessel progenitor differentiation via interaction with PAK-1.
answer:
yes


question:
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.
answer:
yes


question:
Question: Are weight bearing radiographs necessary for measurement of polyethylene penetration in total hip prostheses : a radiostereometric study of 111 patients examined in weight-bearing and supine position?
Answer: The small systematic difference in penetration values between the supine and the weight-bearing positions is of no clinical or methodological importance.
answer:

no