Yes. Hi, Mike. I hope you are doing well. The -- George and I will tackle this. Well, I think when we've looked at the sublease inventory in Philly, I think the answer to it, we're pretty pleased with it. I mean the numbers are fairly low. I mean in the city where we're talking about is CBD sublease space of in Class A about 320,000 square feet, which really hasn't moved all that much with the largest block being 30,000 square feet. University City, less than 30,000 square feet of sublease space, the Pennsylvania suburbs have stayed in and around that 500,000 square foot mark, which really given the size of the inventory base is fairly small and in none of those three markets have we really seen any big uptick since the crisis began? At one level, I think the world knows the office markets are in a bit of a pause and a pause can simply be a pause without it being an Armageddon. I mean, if you think about what's going on in the world, so many folks are focused on visitor folks and things other than just their office platform right now. They are concerned about distance and public policy, mass transportation, children getting back to school. So we are -- that's why I feel pretty optimistic that our leasing team and our regional heads, I mean they're -- we're talking to tenants, brokers, political leaders, community leaders on a daily basis to try and get as good a window into what's happening as possible. And I think frankly, Philadelphia will prove that its resiliency in challenging times as we look out over the next couple of years whereas on the upside, we either grow as fast, we tend to be fairly stable when things get slower. To get to your other question, we really haven't seen, and I'll defer to George, but we haven't seen any real significant movement, Michael, from CBD down to the suburbs or vice versa. But, George what do you say?