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: Do progesterone receptor and PTEN expression predict survival in patients with low- and intermediate-grade pancreatic neuroendocrine tumors?
Answer: Combined immunohistochemical assessment of PR and PTEN may help identify a small subset of PanNETs with more aggressive behavior and may aid in risk stratification.

Output: yes

Input: Consider Input: Question: Are copy-number variations enriched for neurodevelopmental genes in children with developmental coordination disorder?
Answer: These findings suggest that there may be shared susceptibility genes for DCD and other neurodevelopmental disorders and highlight the need for thorough phenotyping when investigating the genetics of neurodevelopmental disorders. Furthermore, these data provide compelling evidence supporting a genetic basis for DCD, and further implicate rare CNVs in the aetiology of neurodevelopmental disorders.

Output: yes

Input: Consider Input: Question: Is robotic urological surgery in patients with prior abdominal operations associated with increased complications?
Answer: Our study demonstrates that robotic urological surgery can be performed in patients with prior abdominal surgery without increased perioperative complications.
Output: no