<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:  Explain the purpose of corporations. Context: The purpose of corporations is to provide a legal structure for business activities and separate liability. Answer: [/INST]It is to provide a legal structure for business activities and separate liability.</s>