<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 main purpose of marketing? Context: The main purpose of marketing is to promote products or services and increase sales through advertising and branding strategies. Answer: [/INST]The main purpose of marketing is to promote products or services and increase sales through advertising and branding strategies.</s>