Instructions: 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: 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.
Output:
no