<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:  How does photosynthesis work? Context: Photosynthesis is a process used by plants to convert light energy into chemical energy. Answer: [/INST]Photosynthesis is a process used by plants to convert light energy into chemical energy.</s>