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.

Input: Consider Input: Question: Does successful AV fistula creation lead to higher catheter use : the experience by the Northwest Renal Network 16 Vascular Access Quality Improvement Program . Four years follow-up?
Answer: The success of Network 16's AVF interventions demonstrates the effectiveness of Network education promoting multidisciplinary teamwork, and innovative strategies to increase dramatically AVF use without substantial increase in catheter use.

Output: no


Input: Consider Input: Question: Do apolipoprotein E genotypes influence the age of onset in Huntington 's disease?
Answer: The ApoE genotype does not affect the course of HD significantly.

Output: no


Input: Consider Input: Question: Does seminal Helicobacter pylori treatment improve sperm motility in infertile asthenozoospermic men?
Answer: H pylori treatment significantly improves sperm motility in infertile asthenozoospermic men with elevated seminal H pylori IgA.


Output: yes