 I do agree that we shouldn't be naming variants by place of detection in part because evolution is happening all around the world right now and the places that will find it are the places that are doing sequencing so there could be a rather strange incentive where people are doing sequencing but also getting labelled as the place that identified the variant first. First, I think it's really key. We also don't really know for certain where variants arise because people travel so much still. A variant could arise in one place and be taken to another and then first detected. I think it's really important that we don't have a stigma arising. And so that's really key. The complexity the WHO are tackling and I think that what they'll end up doing is having a system of naming that's useful for scientists. But actually, it's quite difficult to remember a list of numbers as a scientist actually. I suppose for somebody who's been working in fluenza, one of the... and as Sharon said, it's easier to remember Jane and Tom and things like that compared to longitude and latitude. In fluenza, unfortunately, it does come back to where it was identified. So we have Californian strains and Brisbane strains and Puerto Rico. And again, that is associated with places. So I guess it is going to be really difficult to find. And as a flu virus person, you kind of know what's happening in those viruses because they have a name and it's one of the reasons I don't work in genomics because I can't handle four letters of A, T, C and G but I can handle amino acids. They're much richer context. We do have a very bad way of naming variants at the moment and we need a better way of naming them but it's not going to help for us to name every single variant that's out there. That would just be confusing. So we do have a lineage naming system which we are using with him, Cog UK and other people are using it as well which we're using to track different lineages of the virus as they are emerging and variants do belong to different lineages as well. So we do have many, many lineages that we are tracking. As they are arising and possibly getting extinct. And from there we identify new variants.