echo 'digraph {

"Akira-sensei" -> "Chihiro-sensei" [taillabel = "Colleague of"]
"Chie-sensei" -> "Chihiro-sensei" [taillabel = "Colleague of"]
"Akira-sensei" -> "Chie-sensei" [taillabel = "Colleague of"]
"Chihiro-sensei" -> "Chie-sensei" [taillabel = "Colleague of"]
"Kaya Satou" -> "Chie-sensei" [taillabel = "Teacher of"]
"Chie-sensei" -> "Akira-sensei" [taillabel = "Colleague of"]
"Chihiro-sensei" -> "Akira-sensei" [taillabel = "Colleague of"]
}' | dot -Tsvg > output.svg