Question: Is The Dictator the title of the film that has Barack Obama as a cast member?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Program:
function: Find
inputs: Barack Obama
function: Relate
dependencies: 0
inputs: cast member
backward
function: FilterConcept
dependencies: 1
inputs: film
function: QueryAttr
dependencies: 2
inputs: title
function: VerifyStr
dependencies: 3
inputs: The Dictator
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "film" . ?e <cast_member> ?e_1 . ?e_1 <pred:name> "Barack Obama" .  ?e <title> ?pv . ?pv <pred:value> "The Dictator" .  }
Answer: yes