echo 'digraph {

"Yuuta Matsumoto" -> "Yuuta's father" [taillabel = "Father of"]
"Takeru Aizawa" -> "Yuuta Matsumoto" [taillabel = "Friend of"]
"Yuuta's father" -> "Yuuta Matsumoto" [taillabel = "Son of"]
"Aiko Saitou" -> "Yuuta Matsumoto" [taillabel = "Student of"]
}' | dot -Tsvg > output.svg