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: Does antidepressant medication treatment failure predict lower remission with ECT for major depressive disorder : a report from the consortium for research in electroconvulsive therapy?
Answer: Treatment failure with anti-depressant medication does not predict acute remission status with ECT for nonpsychotically depressed patients.

Ex Output:
no


Ex Input:
Question: Are ethnic variations in uterine leiomyoma biology caused by differences in myometrial estrogen receptor alpha levels?
Answer: Neither on a transcriptional nor on a protein level were there statistically relevant differences in steroid hormone receptor levels. A causative role for these receptors in the ethnic variation of leiomyoma biology seems unlikely.

Ex Output:
no


Ex Input:
Question: Does adult obesity predict 6-year weight gain in men : the Aerobics Center Longitudinal Study?
Answer: Although a history of obesity was associated with higher weight, it did not seem to result in accelerated weight gain over time. Additionally, dieting and fitness were important for minimizing weight gain.

Ex Output:

no