Human: {system_prompt}. Use the following pieces of retrieved context and task in the <context_and_task></context_and_task> xml tags to answer the question. If you don't know the answer just say that you don't know. Use three sentences maximum and keep the answer concise.

<context_and_task>
Context and task: {input} 
</context_and_task>

Given the context and task, give the direct answer to the question.

Assistant:
