We pick b.root-servers.net, one of the 13 root servers (1), and ask it about vg and learn that vg is delegated to four name servers (2), so we ask europe.zone.vg and get the following answer:
Vg (the tld of Virgin Islands) is a domain controlled by three domain name servers at zone.vg and ripe.net having a total of four IP numbers. All four of them are on different IP networks.