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: Is haploinsufficiency the key mechanism of pathogenesis in a heterozygous Elovl4 knockout mouse model of STGD3 disease?
Answer: The detailed characterization of this animal model provides the first in vivo evidence that Elovl4 haploinsufficiency is not the underlying key disease mechanism in STGD3. The results are consistent with a dominant negative mechanism for the deletion mutation. The Elovl4 knockout mouse is one of three complementary animal models that will help elucidate the disease mechanism.
Example Output: no

Example Input: Question: Do armband activity monitor data correlate with reported pain scores in patients receiving vertebroplasty?
Answer: Activity monitors can be used to objectively record changes in activity following vertebroplasty procedures. Patient-reported pain or disability scores do not correlate with activity monitor-measured activity or sleep metrics.
Example Output: no

Example Input: Question: Is epithelial-to-mesenchymal transition ( EMT ) in intraductal papillary mucinous neoplasm ( IPMN ) associated with high tumor grade and adverse outcomes?
Answer: EMT may play a role in IPMN tumorigenesis and metastasis. EMT molecular deregulations could be utilized as potential novel biomarkers for the identification of high-risk IPMN patients.
Example Output:
yes