echo 'digraph {

"Aunt Em" -> "Uncle Henry" [taillabel = "Husband of"]
"Dorothy Gale " -> "Uncle Henry" [taillabel = "Uncle of"]
"Uncle Henry" -> "Dorothy Gale " [taillabel = "Niece of"]
"Aunt Em" -> "Dorothy Gale " [taillabel = "Niece of"]
"Toto" -> "Dorothy Gale " [taillabel = "Owner of"]
"Uncle Henry" -> "Aunt Em" [taillabel = "Wife of"]
"Dorothy Gale " -> "Aunt Em" [taillabel = "Aunt of"]
}' | dot -Tsvg > output.svg