echo 'digraph {

"Calvin" -> "Heath" [taillabel = "Son of"]
"Phoebe" -> "Heath" [taillabel = "Son of"]
"Barbara" -> "Heath" [taillabel = "Grandson of"]
"Simon" -> "Heath" [taillabel = "Grandson of"]
"Barbara" -> "Phoebe" [taillabel = "Daughter of"]
"Simon" -> "Phoebe" [taillabel = "Daughter of"]
"Calvin" -> "Phoebe" [taillabel = "Potential Wife of"]
"Phoebe" -> "Calvin" [taillabel = "Potential Husband of"]
"Phoebe" -> "Barbara" [taillabel = "Mother of"]
"Simon" -> "Barbara" [taillabel = "Wife of"]
"Barbara" -> "Simon" [taillabel = "Husband of"]
"Phoebe" -> "Simon" [taillabel = "Father of"]
}' | dot -Tsvg > output.svg