Simon Campion, CEO, Dentsply Sirona : Mike, when I think of BYTE, I think of two things. I think of our product and I think of capability. And it's clear that we've moved on from the product for the reasons that have been well discussed. But the capability that the group at the BYT facilities has around demand generation, around e commerce, around interfacing with patients, we think is very meaningful. And so we've done we did a big survey with on orthodontics several months ago and more recently we've done yet another survey about perceptions of bite and perceptions of demand generation and the interface with patients.