<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 loop in programming? Context: A loop in programming is a structure that repeats instructions until a condition is met. Answer: [/INST]A loop is a programming structure that repeats a sequence of instructions until a specific condition is met.</s>