Question: What citizen of the United States of America is the chief executive officer of AOL?
Choices: Sylvester Stallone
Richard Gere
William Henry Harrison
David Byrne
Max Fleischer
Tim Armstrong
Steve Jobs
Robert Mitchum
Hilary Swank
Ryan Kavanaugh
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <chief_executive_officer> ?e . ?e_1 <pred:name> "AOL" .  ?e <country_of_citizenship> ?e_2 . ?e_2 <pred:name> "United States of America" .  }
Program:
function: Find
inputs: AOL
function: Relate
dependencies: 0
inputs: chief executive officer
forward
function: FilterConcept
dependencies: 1
inputs: human
function: Find
inputs: United States of America
function: Relate
dependencies: 3
inputs: country of citizenship
backward
function: FilterConcept
dependencies: 4
inputs: human
function: And
dependencies: 2
5
function: What
dependencies: 6
Answer: Tim Armstrong