Caterpillar and comasu together, there as about a thousand vehicless been running fully atonomously last seven to eight years. And they have moved about four billion tons of metrial with a single fatal accident. Can the same set of censors accurately detect the proper path in environment filled with rocks or inconsistent lighting and lack of signage, or even a rope? So is it necessary? Ther's a work site. Do you a h d map the site and then help create a work flow for repetitive tasks? And to what extent does the client who possesses one of your vehicles, or a vehicle with your technology on it, can they then go out and move the vehicle to new