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.

[Q]: Question: Does human Amnion-Derived Mesenchymal Stem Cell Transplantation ameliorate Liver Fibrosis in Rats?
Answer: Transplantation of hAMSCs provided significant improvement in a rat model of liver fibrosis, possibly through the inhibition of Kupffer cell and hepatic stellate cell activation. hAMSCs may be a potential new treatment for liver fibrosis.
[A]: yes

[Q]: Question: Does l-Tryptophan influence acute ventilatory response at moderate altitude?
Answer: L-tryptophan does not impair ventilatory adaptation to mild hypoxia at moderate altitude.
[A]: no

[Q]: Question: Is depressed affect associated with poorer cardiovascular recovery in young women following a mental stressor?
Answer: Greater depressed mood was associated with greater HR reactivity and poorer DBP recovery. This is the first study to directly investigate associations between depressed mood and CV recovery following mental stress.
[A]:
yes