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.
Q: Question: Does new probing and warm-wash-out technique improve early patency rates in arteriovenous fistula surgery?
Answer: Probing and warm-wash out technique will simply increase the surgical success and flow rate of draining vein.
A:
yes