<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context 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. Question:  Explain what a backup is. Context: A backup is a copy of data that can be used to restore the original data in case of loss or corruption. Answer: [/INST]A backup is a copy of data that can be used to restore the original data in case of loss or corruption.</s>