Question: The Christopher Wren who works in Oxford is whose father?
Choices: John Adams
William Henry Harrison
Craig Rocastle
Bruce McGill
Sylvester Stallone
Max Fleischer
Rahul Dev Burman
Richard Gere
David Byrne
Christopher Wren
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <father> ?e_1 . ?e_1 <pred:name> "Christopher Wren" . ?e_1 <work_location> ?e_2 . ?e_2 <pred:name> "Oxford" .   }
Program:
function: Find
inputs: Oxford
function: Relate
dependencies: 0
inputs: work location
backward
function: Find
inputs: Christopher Wren
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: father
backward
function: FilterConcept
dependencies: 4
inputs: human
function: What
dependencies: 5
Answer: Christopher Wren