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: Do increased homocysteine levels exist in women with preeclampsia from early pregnancy?
Answer: Our results indicate that higher homocysteine levels exist in women with PE from early pregnancy and continue till delivery.
[A]: yes

[Q]: Question: Does racemic ketamine abolish cerebrovascular autoregulation in the pig?
Answer: We conclude that autoregulation of CBF is not abolished during continuous ketamine infusion in normoventilated pigs and that previous divergent conclusions are unlikely to be associated with severe impairment of cerebrovascular autoregulation.
[A]: no

[Q]: Question: Does the presence of the adult respiratory distress syndrome worsen mortality or discharge disability in blunt trauma patients with severe traumatic brain injury?
Answer: The presence of ARDS was not associated with higher mortality or worse discharge disability. It was, however, associated with higher hospital morbidity, longer ICU and hospital length of stay.
[A]:
no