Yeah. Good question. The fifth leg of that stool maybe just think about that one, right now I don't think so. George, it's a tough goal to go outside of what we know, recognizing the fact that our segment will have a broad portfolio of products and markets. For example, if you look at our Digital Imaging segment, we serve about the third of it is in machine vision we talked about that. We have about a quarter of that in health care, then we have another quarter, that's in Aerospace and Defense, and then we have of course the MEMS and then we have LiDARs and geospatial, et cetera. So it's a broad portfolio of businesses. It'll be easier if we were to add to those, because we're more knowledgeable about that and we're also in the medical domain. There are lot of other things that just x-rays and the stuff that we do for medical devices for cancer treatments radiation. Having said that, we think we can move away from some of those areas like we did in scientific cameras from Roper. So, I don't think we need to go to a fifth lap, because we have a nice balanced portfolio of businesses. Regarding the second part of your question about divestiture, yeah, our Engineered Systems segment, the margin is approximately 10%, sometimes goes as far as 11%. I don't think we would divest those businesses. The reason being very simple there is a -- it's a very little assets in that business and it kicks off about $20 million to $25 million in IBT, which adds $0.50 to $0.60 of earnings. And I just don't see how we can make that up by divesting and paying taxes and try to make that cash though the $0.50, $0.60 that we're getting from that business. The final area there is we do have a lot of engineering talent there, as they are helping us move into systems in other fields that we would have a problem going by ourselves. For example, we sell gliders to the Navy. For example, Navy deployed 140 of our gliders in one of single operations this year, and that kind of a system's capability we have it only in our Engineered Systems. So, a lot of our gliders' sales and developments are coming there and, of course, as you know, we have a very big program, very strong program in underwater shallow water combat vehicles for our Navy SEAL. So, the answer is not likely that we would sell that, because things like the shallow water combat vehicles use a lot of instruments from our Marine instruments whether they are images, whether they are sonars for detecting mines or detecting shores. So, I don't see that. It first doesn't make sense. Secondly, it's a nice platform for us to get into systems businesses without other businesses.