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.

[EX Q]: Question: Do urban settings ensure access to services : findings from the immunisation programme in Kampala Uganda?
Answer: Complex health system barriers to childhood immunisation still exist in this urban setting; emphasizing that even in urban areas with great physical access, there are hard to reach people. As the rate of urbanization increases especially in sub-Saharan Africa, governments should strengthen health systems to cater for increasing urban populations.
[EX A]: no

[EX Q]: Question: Do why social workers implement decisions to remove children at risk from home?
Answer: Further study is required to examine the generalizability of these findings to other countries, to understand better the reasons for the non-implementation, and to follow-up on the consequences of the non-implementation.
[EX A]: no

[EX Q]: Question: Does polyphenol-enriched diet prevent coronary endothelial dysfunction by activating the Akt/eNOS pathway?
Answer: Pomanox supplementation hinders hyperlipemia-induced coronary endothelial dysfunction by activating the Akt/endothelial nitric oxide-synthase pathway and favorably counteracting vascular inflammation and oxidative damage.
[EX A]:
yes