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: Does restrictive left ventricular filling pattern result from increased left atrial pressure alone?
Answer: The restrictive filling pattern is distinguished from overfilling of a normal ventricle by a reduced and delayed E' and a shortened E deceleration time that reflect slow relaxation and increased LV stiffness.
Example Output: no

Example Input: Question: Is resistive heating more effective than metallic-foil insulation in an experimental model of accidental hypothermia : A randomized controlled trial?
Answer: Resistive heating more than doubles the rewarming rate compared with that produced by reflective metal foil and does so without producing an afterdrop. It is therefore likely to be useful in the prehospital setting.
Example Output: yes

Example Input: Question: Are anatomical landmarks of the distal femoral condyles always parallel to the tibial bone cut surface in flexion during total knee arthroplasty?
Answer: The anatomical landmarks of the distal femoral condyles are not always parallel to the tibial bone cut surface in flexion. To create a rectangular flexion joint gap, the rotation of the femoral component rotation is based not only on the anatomical landmarks but also on the ligament balance.
Example Output:
no