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: Do human umbilical cord-derived mesenchymal stem cells protect against experimental colitis via CD5 ( + ) B regulatory cells?
Answer: HUC-MSCs protected against experimental colitis by boosting the numbers of CD5(+) B cells and IL-10-producing CD5(+) Bregs, and correcting Treg/Th17/Th1 imbalances.
Example Output: yes

Example Input: Question: Does cYP3A5 genotype influence everolimus in vitro metabolism and clinical pharmacokinetics in renal transplant recipients?
Answer: This study provides direct and indirect evidence that CYP3A5 genotyping cannot help improve everolimus therapy.
Example Output: no

Example Input: Question: Does meta-analysis show that infants who have suffered neonatal sepsis face an increased risk of mortality and severe complications?
Answer: Infants who have suffered neonatal sepsis face an increased risk of mortality and severe complications such as brain damage and, or, neurodevelopmental delay.
Example Output:
yes