<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:  How does sodium react with water? Context: Sodium reacts violently with water, producing hydrogen gas and sodium hydroxide. Answer: [/INST]Sodium reacts violently with water, producing hydrogen gas and sodium hydroxide.</s>