<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 urban planning? Context: Urban planning involves designing and shaping the layout of cities and communities. Answer: [/INST]Urban planning is the process of designing and shaping the physical layout of cities, towns, and communities.</s>