echo 'digraph {

"Masato Ikegaki" -> "Masato's father" [taillabel = "Father of"]
"Rina Takeda" -> "Masato Ikegaki" [taillabel = "Engaged to"]
"Masato's father" -> "Masato Ikegaki" [taillabel = "Son of"]
}' | dot -Tsvg > output.svg