system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What is an excavator?


assistant
An excavator is a heavy equipment machine that is used for moving large amount of earth at one time.  They have a boom and a huge bucket attached to them and are essentially a huge shovel used to prepare the ground for huge construction projects.  John Deere is one company that produces excavators.