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.

[EX Q]: Question: Are cXXC4 mRNA levels associated with clinicopathological parameters and survival of myelodysplastic syndrome patients?
Answer: This study demonstrated that the age of patients and levels of CXXC4 mRNA, hemoglobin, and marrow blast associated with survival of MDS patients.
[EX A]: yes

[EX Q]: Question: Do clinical and radiological courses differ between fluid-attenuated inversion recovery-positive and negative patients with stroke after thrombolysis?
Answer: Visibility of lesions on FLAIR in areas of diffusion restriction was not predictive of the response to thrombolysis.
[EX A]: no

[EX Q]: Question: Is the reliability of methionine challenge test affected by a deficiency in pyridoxal phosphate , folic acid , or cobalamin?
Answer: Abnormal methionine challenge test results cannot be explained by a deficiency in pyridoxal phosphate, folic acid, or cobalamin. We demonstrate that, when women are tested 3 months postpartum, the methionine challenge test is reliable for demonstrating hyperhomocysteinemia as a risk factor for vascular-related complications of pregnancy.
[EX A]:
no