Detailed 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.
Problem:Question: Are serum levels of activin A and inhibin A related to the increased susceptibility to pre-eclampsia in type I diabetic pregnancies?
Answer: Serum concentrations of activin A and inhibin A could not predict preeclampsia in type I diabetes.
Solution:
no