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: Is serum under-O-glycosylated IgA1 level correlated with glomerular IgA deposition based upon heterogeneity in the composition of immune complexes in IgA nephropathy?
Answer: Serum under-O-glycosylated IgA1 levels are not correlated with glomerular IgA deposition based upon heterogeneity in the composition of glomerular immune complexes in IgAN patients.
Solution:
no