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.

[Q]: Question: Is recent unstable angina and off-pump coronary artery bypass grafting related to postoperative atrial fibrillation?
Answer: Post-CABG AF is associated with more complicated postoperative outcome. Recent unstable angina and off-pump procedure is not related to the occurrence of post-CABG AF.
[A]: no


[Q]: Question: Do autism-associated gene Dlgap2 mutant mice demonstrate exacerbated aggressive behaviors and orbitofrontal cortex deficits?
Answer: Our findings clearly demonstrate that Dlgap2 plays a vital role in social behaviors and proper synaptic functions of the OFC. Moreover, these results may provide valuable insights into the neuropathology of autism.
[A]: yes


[Q]: Question: Does health related quality of life in Crohn 's proctocolitis differ from a general population when in remission?
Answer: The health related quality of life for patients with Crohn's proctocolitis in remission does not differ from the general population. The disease has, however, a negative impact on parenthood, family life and professional performance.
[A]:
no