echo 'digraph {

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