<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 maximum heart rate for a 30-year-old person during exercise? Context: The maximum heart rate for a 30-year-old person during exercise is 190 beats per minute. Answer: [/INST]190 beats per minute.</s>