echo 'digraph {

"Atsushi Ootani" -> "Risa Koizumi" [taillabel = "Girlfriend of"]
"Nobuko Ishihara" -> "Risa Koizumi" [taillabel = "Friend of"]
"Risa Koizumi" -> "Atsushi Ootani" [taillabel = "Boyfriend of"]
"Mayu Kanzaki" -> "Atsushi Ootani" [taillabel = "Former boyfriend of"]
"Heikichi Nakao" -> "Atsushi Ootani" [taillabel = "Friend of"]
"Ryouji Suzuki" -> "Atsushi Ootani" [taillabel = "Friend of"]
"Heikichi Nakao" -> "Nobuko Ishihara" [taillabel = "Girlfriend of"]
"Chiharu Tanaka" -> "Nobuko Ishihara" [taillabel = "Friend of"]
}' | dot -Tsvg > output.svg