echo 'digraph {

"Daigo Kurosaki" -> "Keiichirou Kishikawa" [taillabel = "Friend of"]
"Takumi Yamashiro" -> "Keiichirou Kishikawa" [taillabel = "Friend of"]
"Shuusuke Takanashi" -> "Keiichirou Kishikawa" [taillabel = "Friend of"]
"Shuusuke Takanashi" -> "Daigo Kurosaki" [taillabel = "Friend of"]
"Takumi Yamashiro" -> "Daigo Kurosaki" [taillabel = "Friend of"]
}' | dot -Tsvg > output.svg