<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 mechanical engineering? Context: Mechanical engineering is a field of engineering that focuses on designing, analyzing, and building mechanical systems. Answer: [/INST]Mechanical engineering is a branch of engineering that involves the design, analysis, and manufacturing of mechanical systems.</s>