<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 quantum entanglement? Context: Quantum entanglement occurs when particles become connected in a way that one particle's quantum state cannot be described without considering the other particle's state. Answer: [/INST]Quantum entanglement is a phenomenon in which particles become connected in such a way that the quantum state of one particle cannot be described independently of the state of the other particle.</s>