<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 involves designing, analyzing and maintaining mechanical systems using engineering principles, physics, and materials science. Answer: [/INST]Mechanical engineering is the discipline that applies the principles of engineering, physics, and materials science for the design, analysis, manufacturing, and maintenance of mechanical systems.</s>