<|im_start|>user
What is an excavator?<|im_end|>
<|im_start|>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.<|im_end|>
