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 Input:
Question: Is magnesium sulfate used for pre-eclampsia and eclampsia in Mexico and Thailand as much as it should be?
Answer: Despite compelling evidence, magnesium sulfate use is below desired levels. Clinical practices should be audited and implementation of this effective intervention should be taken up as a priority where universal implementation is not in place.

Ex Output:
no

Ex Input:
Question: Is the high-dose sequential ( Milan ) chemotherapy/PBSC transplantation regimen for patients with lymphoma cardiotoxic?
Answer: The HDS chemotherapy regimen produced no significant sign of cardiotoxicity up to one year after transplantation in patients with normal baseline cardiac function and no history of cardiac disease, pretreated with up to 550 mg/m2 of doxorubicin.

Ex Output:
no

Ex Input:
Question: Do all aggressive lymphoma subtypes share similar outcome after front-line autotransplantation : a matched-control analysis by the Groupe d'Etude des Lymphomes de l'Adulte ( GELA )?
Answer: This cohort study confirms the high efficacy of front-line ASCT in responding aggressive B-NHL patients with adverse prognostic factors.

Ex Output:
no