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 acute pain and central nervous system arousal restore impaired hypoxic ventilatory response during sevoflurane sedation?
Answer: The observation that acute pain caused an increase in baseline ventilation with no effect on the acute hypoxic ventilatory response indicates that acute pain interacted with ventilatory control without modifying the effect of low-dose sevoflurane on the peripheral chemoreflex loop. Acute pain increased the level of arousal significantly during sevoflurane inhalation but did not restore the approximately 30% depression of the acute hypoxic ventilatory response by sevoflurane. The central nervous system arousal state per se did not contribute to the impairment of the acute hypoxic ventilatory response by sevoflurane.
Example Output: no

Example Input: Question: Does iron-limited condition modulate biofilm formation and interaction with human epithelial cells of enteroaggregative Escherichia coli ( EAEC )?
Answer: Low iron availability may modulate biofilm formation and adhesive properties of EAEC strains to HEp-2 cells.
Example Output:
yes