<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 process of mixing cement and water to create a bonding agent for building materials called? Context: Hydration is the process of mixing cement and water to create a bonding agent for building materials. Answer: [/INST]The process is called hydration.</s>