<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 a mutual fund? Context: A mutual fund is a type of investment vehicle managed by a professional money manager, consisting of a portfolio of stocks, bonds, or other securities. Answer: [/INST]A mutual fund is a type of investment vehicle consisting of a portfolio of stocks, bonds, or other securities, which is managed by a professional money manager.</s>