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: Is periodontitis an independent risk indicator for atherosclerotic cardiovascular diseases among 60 174 participants in a large dental school in the Netherlands?
Answer: This cross-sectional analysis of a large cohort in the Netherlands of 60174 participants shows the independent association of periodontitis with ACVD.
Example Output: yes

Example Input: Question: Do workers of a drywood termite work?
Answer: Thus, in contrast to general perception where termite workers are considered equivalent to workers in Hymenoptera, the 'large immatures' of C. secundus did not behave as workers that help in raising younger siblings. This apparently is not necessary as the colony lives inside its food. These results, which are likely to be typical for wood-dwelling termites, open the possibility that large complex group living can evolve without altruistic helping and that costly altruistic helping by workers in termites evolved only as a second step.
Example Output: no

Example Input: Question: Is lumbar puncture success rate influenced by family-member presence?
Answer: The presence of a family member was not associated with an increased risk of traumatic or unobtainable lumbar puncture, nor was it associated with more attempts at the procedure. The benefits of having a family member present during the procedure were not counterbalanced by adverse effects on procedural success.
Example Output:
no