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: 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.
[EX A]: no

[EX Q]: Question: Is daily physical activity in patients with chronic obstructive pulmonary disease mainly associated with dynamic hyperinflation?
Answer: Daily physical activity of patients with COPD is mainly associated with dynamic hyperinflation, regardless of severity classification.
[EX A]: yes

[EX Q]: Question: Does a novel acetylcholinesterase inhibitor and calcium channel blocker SCR-1693 improve Aβ25-35-impaired mouse cognitive function?
Answer: All these findings indicated that SCR-1693, as a double-target-direction agent, is a considerable candidate for AD therapy.
[EX A]:
yes