<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 plot twist in a movie? Context: A plot twist in a movie is a surprising change in the plot that catches the audience off guard. Answer: [/INST]A plot twist is a sudden change in the direction or expected outcome of the plot that surprises the audience.</s>