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 the usage of overtube have a favorable effect on endoscopic submucosal dissection?
Answer: We conclude that using an overtube during an upper gastrointestinal ESD decreases the need for suction, favors the speed of dissection, and eases the comfort of the procedure.
[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: Does a Selective Cell Population From Dermis strengthen Bone Regeneration?
Answer: Dermal cells are a promising cell population for bone regeneration; unfortunately, the osteogenic potential of unsorted cells was quite low. This study demonstrated that a specific cell population in human dermis-bone morphogenetic protein receptor IB (BmprIB)+ cells-exhibited significantly higher osteogenic potential than unsorted dermal cells by repairing critical-sized calvarial defects in an immunodeficient mouse model. This animal study is an extension of a previous in vitro finding in which BmprIB was proven as a marker for enrichment of osteogenic precursor-like cells in human dermis, indicating that the selective cell population BmprIB from human dermis is a promising osteogenic progenitor cell that can provide a large-quantity and high-quality cell source for bone tissue engineering.
[A]:
yes