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.

Input: Consider Input: Question: Is the ribbon-associated protein C-terminal-binding protein 1 essential for the structure and function of retinal ribbon synapses?
Answer: Overall the results suggest that CtBP1 protein is not essential for the formation of functional ribbon synapses in the retina.

Output: no


Input: Consider Input: Question: Does cSTMP induce apoptosis and mitochondrial dysfunction in human myeloma RPMI8226 cells via CHOP-dependent endoplasmic reticulum stress?
Answer: Our results indicated that CSTMP could induce apoptosis and mitochondrial dysfunction in RPMI8226 cells via CHOP-dependent ER stress.

Output: yes


Input: Consider Input: Question: Does the number of axillary lymph nodes involved with metastatic breast cancer affect outcome as long as all disease is confined to the sentinel lymph nodes?
Answer: The number of nodes involved with metastatic disease does not impact OS and DFS if all disease is confined to the SLNs. Non-SLN involvement negatively influences OS and DFS independent of the number of positive nodes.


Output: no