<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 Newton's first law of motion? Context: Newton's first law of motion states that an object at rest tends to stay at rest, and an object in motion tends to stay in motion unless acted upon by an external force. Answer: [/INST]An object at rest tends to stay at rest, and an object in motion tends to stay in motion unless acted upon by an external force.</s>