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: Are endogenous sex hormones associated with subclinical atherosclerosis in menopausal women?
Answer: Estradiol and testosterone are not associated with subclinical atherosclerosis in menopausal women. A positive correlation between IMT and FSH may reflect an association between low estrogen and IMT. Abdominal fat can be an important link between androgenic levels and cardiovascular risk.
Example Output: no

Example Input: Question: Does monosialotetrahexosylganglioside inhibit the Expression of p-CREB and NR2B in the Auditory Cortex in Rats with Salicylate-Induced Tinnitus?
Answer: These data suggest that chronic salicylate administration induces tinnitus via upregulation of p-CREB and NR2B expression, and that GM1 can potentially be used to treat tinnitus.
Example Output: yes

Example Input: Question: Do the characteristics of concomitant thyroid nodules cause false-positive ultrasonography results in primary hyperparathyroidism?
Answer: Although there was no particular characteristic of concomitant thyroid nodules that contributes to false-positive US results, the posteriorly located thyroid nodules were the strongest correlate for the false-positive US results to other features.
Example Output:
yes