<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:  What is the speed limit on highways in the US? Context: The speed limit on US highways varies by state, usually ranging from 65-75 mph. Answer: [/INST]The speed limit on highways in the US varies by state, but it is typically 65-75 mph.</s>