Definition: 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: Question: Does c-reactive protein estimation improve accuracy in the diagnosis of acute appendicitis in pediatric patients?
Answer: The sensitivity and PPV of WBC were better than CRP alone, or in combination with WBC. We conclude that CRP does not aid in the diagnosis of appendicitis. Simple appendicitis was seen in spite of normal WBC and CRP.
Output:
no