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: Are endogenous sex hormones associated with subclinical atherosclerosis in menopausal women?
Answer: Estradiol and testosterone are not associated with subclinical atherosclerosis in menopausal women. A positive correlation between IMT and FSH may reflect an association between low estrogen and IMT. Abdominal fat can be an important link between androgenic levels and cardiovascular risk.
Example Output: no

Example Input: Question: Does paclitaxel-carboplatin chemotherapy cause encephalopathy in patients with ovarian cancer : a prospective EEG mapping study in 28 patients?
Answer: The results of this study suggest that chemotherapy consisting of paclitaxel and carboplatin does not cause adverse effects on the central nervous system. Improved vigilance was measured in patients with ovarian cancer after chemotherapy.
Example Output:
no