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 transgenic Cry1Ab rice impact ecological fitness and predation of a generalist spider?
Answer: The transgenic Cry1Ab rice lines tested in this study had no adverse effects on the survival, developmental time and fecundity of P. pseudoannulata in the laboratory or on predation under field conditions. This suggests that this important predator would not be harmed if transgenic Cry1Ab rice were commercialized.
Example Output: no

Example Input: Question: Do quantitative EEG markers relate to Alzheimer 's disease severity in the Prospective Dementia Registry Austria ( PRODEM )?
Answer: Selected QEEG markers show strong associations with AD severity. Both cognitive and resting state should be used for QEEG assessments.
Example Output: yes

Example Input: Question: Is hyperhomocysteinemia sufficient to cause preeclampsia in an animal model : the importance of folate intake?
Answer: Our study clearly demonstrates that hyperhomocysteinemia is not sufficient to cause PE in this animal model. Furthermore, it confirms the importance of folate intake on pregnancy outcomes.
Example Output:
no