<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 geothermal energy? Context: Geothermal energy is sourced from heat within the Earth. Answer: [/INST]Geothermal energy is heat from the Earth.</s>