A simple example for graphviz

digraph asde91 { ranksep=.75; size = “7.5,7.5”; bgcolor = “cornsilk3” { node [shape=plaintext, fontsize=16]; “Empire” -> “Kingdom”->”Phylum”->”Class”->”Order”->”Family”->”Genus”->”Species”; } node [shape=box,style=filled,color = “dodgerblue4”]; { rank = same; “Life”} node [shape=box,style=filled,color = “dodgerblue3”]; { rank = same; “Empire”; “Prokaryota”; “Eukaryote”; } node [shape=box,style=filled,color = “dodgerblue2”]; { rank = same; “Kingdom”; “Bacteria”; “Protozoa”;”Chromista”;”Plantae”;”Fungi”;”Animalia” } node [shape=box,style=filled,color = “dodgerblue1”]; { rank = same; “Phylum”; “vertebrates”;”molluscs”;”arthropods”;”annelids”;”sponges”;”jellyfish”} node [shape=box,style=filled,color = “dodgerblue”]; { rank = same; “Class”; “Agnatha”;”Chondrichthyes”;”Osteichthyes”;”Amphibia”;”Reptilia”;”Aves”;”Mammalia”} node [shape=box,style=filled,color = “deepskyblue2”]; { rank = same; “Order”;”Artiodactyla”;”Carnivora”;”Cetacea”;”Chiroptera”;”Insectivora”;”Lagomorpha”;”Macroscelidea”;”Perissodactyla”;”Pholidota”;”Rodentia”;”Sirenia”;”Tubulidentata”;”Edentata”;”Hyracoidea”;”Condylarthra”;”Creodonta”;”Desmostylia”;”Embrithopoda”;”Primates”} node [shape=box,style=filled,color = “deepskyblue1”]; { rank = same; “Family”;”Hylobatidae”;”Hominidae”;”Callitrichidae”;”Cebidae”;”Aotidae”;”Pitheciidae”;”Atelidae”;”Cheirogaleidae”;”Daubentoniidae”;”Lemuridae”;”Lepilemuridae”;”Indriidae”} node [shape=box,style=filled,color = “deepskyblue”]; { rank = same; “Genus”;”Pongo”;”Gorilla”;”Pan”;”Homo”} node [shape=box,style=filled,color = “skyblue”]; { rank = same; “Species”;”erectus”,”habilis”,”ergaster”} “Life”->”Prokaryota”; “Life”->”Eukaryote”; “Prokaryota”->”Bacteria”; “Eukaryote”->”Protozoa”,”Chromista”,”Plantae”,”Fungi”,”Animalia” ; “Animalia”->”vertebrates”,”molluscs”,”arthropods”,”annelids”,”sponges”,”jellyfish”; “vertebrates”->”Agnatha”,”Chondrichthyes”,”Osteichthyes”,”Amphibia”,”Reptilia”,”Aves”,”Mammalia”; “Mammalia”->”Insectivora”,”Lagomorpha”,”Artiodactyla”,”Carnivora”,”Cetacea”,”Chiroptera”; “Mammalia”->”Macroscelidea”,”Perissodactyla”,”Pholidota”,”Rodentia”,”Sirenia”,”Tubulidentata”; “Mammalia”->”Edentata”,”Hyracoidea”,”Condylarthra”,”Creodonta”,”Desmostylia”,”Embrithopoda”,”Primates”; “Primates”->”Hylobatidae”,”Hominidae”,”Callitrichidae”,”Cebidae”,”Aotidae”,”Pitheciidae”,”Atelidae”,”Cheirogaleidae”,”Daubentoniidae”,”Lemuridae”,”Lepilemuridae”,”Indriidae”; “Hominidae”->”Pongo”,”Gorilla”,”Pan”,”Homo”; “Homo”->”erectus”,”habilis”,”ergaster”; }