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: Does neamine inhibit oral cancer progression by suppressing angiogenin-mediated angiogenesis and cancer cell proliferation?
Answer: Neamine effectively inhibits oral cancer progression through inhibition of tumor angiogenesis. Neamine also directly inhibits proliferation of certain types of oral cancer cells. Therefore, neamine has potential as a lead compound for oral cancer therapy.
Example Output: yes

Example Input: 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.
Example Output: no

Example Input: Question: Does rpoE promote invasion and intracellular survival by regulating SPI-1 and SPI-2 in Salmonella enterica serovar Typhi?
Answer: RpoE may promote invasion and intracellular survival by regulating the expression of SPI-1 and SPI-2.
Example Output:
yes