<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 periodic table of elements used for? Context: The periodic table of elements is a tool used to organize and classify all known elements. Answer: [/INST]The periodic table of elements is used to organize and classify all known elements.</s>