Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Question: Are hLA-DR and HLA-DQ markers for rapid disease progression in primary sclerosing cholangitis?
Answer: The HLA-associated genetic susceptibility to PSC cannot be attributed to specific amino acid positions of the DR beta chains. The highly discrepant results obtained in two previously reported studies and the present investigation indicate that HLA class II alleles are not markers for a more aggressive clinical course in PSC.
Student:
no