echo 'digraph {

"Ayumi" -> "Yui" [taillabel = "Sister of"]
"Mika" -> "Yui" [taillabel = "Sister of"]
"Mika" -> "Ayumi" [taillabel = "Sister of"]
"Yui" -> "Ayumi" [taillabel = "Sister of"]
"Sana Kurata" -> "Ayumi" [taillabel = "Fan of"]
"Mika" -> "Mika" [taillabel = "Sister of"]
"Yui" -> "Mika" [taillabel = "Sister of"]
}' | dot -Tsvg > output.svg