Question: Who is the father of Nat King Cole?
Choices:
Laura Dern
David Mamet
William Henry Harrison
Richard Gere
Natalie Cole
David Denman
Max Fleischer
Edward Said
Liza Minnelli
Mira Sorvino
Program:
function: Find
inputs: Nat King Cole
function: Relate
dependencies: 0
inputs: father
backward
function: FilterConcept
dependencies: 1
inputs: human
function: What
dependencies: 2
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <father> ?e_1 . ?e_1 <pred:name> "Nat King Cole" .   }
Answer: Natalie Cole