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.

Input: Consider Input: Question: Does preinjury beta blocker usage affect the heart rate response to initial trauma resuscitation?
Answer: Preinjury beta blockade is associated with a slower presenting heart rate, more bradycardia, less tachycardia, but no difference in mortality or ability to achieve a normal heart rate with resuscitation.

Output: no


Input: Consider Input: Question: Do gNAS gene variants affect β-blocker-related survival after coronary artery bypass grafting?
Answer: GNAS haplotypes independently associate with an increased risk of death after primary coronary artery bypass graft surgery. These results are most pronounced in patients receiving βAR blockers, strengthening the rationale for personalized treatment, to decrease medication side effects and improve outcomes.

Output: yes


Input: Consider Input: Question: Do serum IgG antibodies to human herpesvirus-6 ( HHV-6 ) predict the progression of HIV disease to AIDS . Italian Seroconversion Study group?
Answer: The presence of high levels of HHV-6 antibodies does not seem to predict the clinical or immunologic progression of HIV disease.


Output: no