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.

Question: Does revaccination with Bacillus Calmette-Guerin ( BCG ) vaccine reduce morbidity from malaria in African children?
Answer: We found no evidence that BCG revaccination reduces morbidity from malaria.
no

Question: Are synthetic antifibrinolytics associated with an increased incidence of baffle fenestration closure after the modified Fontan procedure?
Answer: Use of epsilon-aminocaproic acid and tranexamic acid is not associated with early baffle fenestration closure after the modified Fontan procedure. It is concluded that these agents can be used without increasing the risk of spontaneous baffle fenestration closure.
no

Question: Do serum albumin and prealbumin predict recurrence in patients with breast cancer?
Answer: Prealbumin and albumin may be sensitive indicators of disturbances in protein metabolism, and reflect inflammation activity and malnutrition. However, our results suggest that evaluation of serum prealbumin and albumin are not useful for predicting disease aggressiveness or recurrence in breast cancer.

no