Instructions: 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 cytosolic phospholipase A2 contribute to innate immune defense against Candida albicans lung infection?
Answer: The results demonstrate that cPLA2 contributes to immune surveillance and host defense in the lung to prevent infection by the commensal fungus C. albicans and to dampen inflammation.
Output:
yes