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.

Example Input: Question: Do older men with higher self-rated socioeconomic status have shorter telomeres?
Answer: men with higher self-rated socioeconomic status have shorter telomeres, possibly mediated through psychosocial rather than lifestyle factors or the presence of chronic disease. There may be cultural ethnic and age-related differences in social determinants of health.
Example Output: yes

Example Input: Question: Do manual Lymphatic Drainage and Active Exercise Effects on Lymphatic Function Translate Into Morbidities in Women Who Underwent Breast Cancer Surgery?
Answer: MLD and active exercise effects are equivalent with regard to morbidity. Minor changes in lymphatic function associated with either MLD or active exercises were not related to patients' symptoms or signs.
Example Output: no

Example Input: Question: Does hIV-2 protect against HIV-1 infection in a rural community in Guinea-Bissau?
Answer: There was no protective effect of HIV-2 in this population. HIV-2 cannot be regarded as a vaccine, but, instead, may be a risk factor for HIV-1 infection.
Example Output:
no