<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 regulating the use of space in cities and towns to optimize their physical form, economic functions, and social impacts. Answer: [/INST]Urban planning is the design and regulation of the uses of space that focus on the physical form, economic functions, and social impacts of cities and towns.</s>