instruction:
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.
question:
Question: Is childhood maltreatment associated with depression but not with hypochondriasis in later life?
Answer: The findings suggest a robust association of childhood maltreatment with depression but not with hypochondriasis. This result does not support etiological models of hypochondriasis which rely on childhood maltreatment as a risk factor for the development of this disorder.
answer:
yes


question:
Question: Do an update on long-term outcome of curative hepatic resection for hepatocholangiocarcinoma?
Answer: Hepatocholangiocarcinoma entails poor long-term outcome after potentially curative hepatectomy. Other modalities of treatment should be explored in order to prolong survival of patients with this disease.
answer:
yes


question:
Question: Does interaction of programmed death-1 and programmed death-1 ligand-1 contribute to testicular immune privilege?
Answer: The constitutive expression of PD-L1 in the testis is an important mechanism underlying testicular immune privilege and long-term survival of intratesticular islet allografts.
answer:

yes