<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 average lifespan of a sea turtle? Context: Sea turtles have an average lifespan of 50-70 years, with some species living up to 100 years. Answer: [/INST]The average lifespan of a sea turtle is 50-70 years, but some species can live up to 100 years.</s>