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: Is meconium ileus in cystic fibrosis linked to central repetitive region length variation in MUC1 , MUC2 , and MUC5AC?
Answer: The genetic length variants in the central repetitive region of three MUC genes studied are not associated with MI in subjects with CF.
Example Output: no

Example Input: Question: Do lactotripeptides lower ambulatory blood pressure in untreated whites : results from 2 controlled multicenter crossover studies?
Answer: The data do not support a BP-lowering effect of LTPs in whites.
Example Output: no

Example Input: Question: Do a prospective study of the diagnostic utility of sputum Gram stain in pneumonia?
Answer: Sputum Gram stain is a dependable diagnostic test for the early etiological diagnosis of bacterial CAP that helps in choosing orthological and appropriate initial antimicrobial therapy.
Example Output:
yes