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.
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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 bone mineral density vary as a function of the rate of joint space narrowing in the hip?
Answer: Patients with a rapid rate of JSN of the asymptomatic hip after unilateral THR are characterized by elevated local and remote BMD. The local elevation in BMD implies that increased local bone density may contribute to or serve as a marker for increased risk of development of OA (assuming that JSN can be used as a predictive marker). The presence of elevated BMD in the spine suggests that there are systemic as well as local aspects of OA pathogenesis, at least in patients with one THR and rapid JSN in the contralateral hip.

Answer: yes


Question: Question: Are joystick interfaces suitable for robotized endoscope applied to NOTES?
Answer: Applying robotics to a flexible endoscope fails to enhance ability to move into the abdominal cavity, partly because of the interface. To overcome the limitations of endoscope when performing complex NOTES tasks, robotics may be useful, especially to control the instruments and to stabilize the endoscope itself.

Answer:
no