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: Is morphine the only analgesic in palliative care : literature review?
Answer: Nurses need to be aware of treatment options that may benefit patients with difficult pain problems. Although positive experiences have been documented when using alternatives to morphine, more research must be conducted to allow practitioners to add more pharmaceutical alternatives to their pain management armouries.
Student:
no