Question: What name was David Copperfield who's a writer born with?
Choices: Sally Margaret Field
Jean-Paul Charles Aymard Sartre
கோபிசாந்தா
Leslie Townes Hope
Steven Lento
Clive Staples Lewis
David Eric Grohl
David Seth Kotkin
Joseph Frank Keaton
Antonio Marquis Reid
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "David Copperfield" . ?e <occupation> ?e_1 . ?e_1 <pred:name> "writer" .  ?e <birth_name> ?pv .  }
Program:
function: Find
inputs: writer
function: Relate
dependencies: 0
inputs: occupation
backward
function: Find
inputs: David Copperfield
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: birth name
Answer: David Seth Kotkin