<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 and what does a mechanical engineer do ? Context: Mechanical engineering is a field that involves designing, analyzing, and maintaining mechanical systems, with mechanical engineers overseeing the production of various products. Answer: [/INST]Mechanical engineering is a discipline that applies principles of physics, mathematics and materials science to design, analyze, manufacture, and maintain mechanical systems. A mechanical engineer is responsible for creating and overseeing the production of a wide range of products, from small individual parts to large machinery.</s>