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 prenatal anteroposterior pelvic diameter cutoffs for postnatal referral for isolated pyelectasis and hydronephrosis : more always better?
Answer: Using these thresholds, we could avoid a significant number of followup ultrasounds in the prenatal and postnatal periods, as well as invasive postnatal tests (ie voiding cystourethrography and mercaptoacetyltriglycine scintigraphy) without missing even a single case of obstructive nephropathy requiring surgery.

Ex Output:
no


Ex Input:
Question: Does adenosine-activated myocardial ischemia induce delayed preconditioning?
Answer: Adenosine-induced ischemia does not exert a delayed protective effect in respect to cardiac bioelectrical and mechanical functions in patients with ischemic heart disease in the form of stable effort angina.

Ex Output:
no


Ex Input:
Question: Does payer Formulary alert as a Cause of Patient Harm and the Journey to Change Them?
Answer: Enduring and meaningful change required partnership with multiple stakeholders, including EHR vendors, ePrescribing vendors, and pharmacy benefits managers. Improving drug alerts, reducing alert fatigue, and promoting value-based prescribing in the EHR will likely require similar partnerships.

Ex Output:

yes