<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 type of insulation is best for a cold climate? Context: Closed-cell spray foam insulation is the best type of insulation for a cold climate. Answer: [/INST]Closed-cell spray foam insulation.</s>