We pick h.root-servers.net, one of the 13 root servers (1), and ask it about sflr.org and learn that org is delegated to six name servers (2), so we ask b0.org.afilias-nst.org where we learn that sflr.org is delegated to two name servers, including ns2.gemusehaken.org (3), so we ask that one and get the following answer: