The only two ways i can think of to do it would be to have the receptionist or somebody who's an auditor walk around with a clip ort, which i understand from you that's what some companies were doing. And then the other way is to have creepy cameras everywhere. We end up essentially being able to scale automated sensing systems that are real time, extremely accurate, and without invading privacy. Allso prior to the pandemic, we were being used to essentially identify where you could do lease avoidance.