Question: What television series' producer is the person who is the screenwriter of Dark Shadows (whose release region is Argentina)?
Choices:
Taken
The Shining
Animaniacs
Beetlejuice
Dark Shadows
Bram Stoker's Dracula
M*A*S*H
Hallmark Hall of Fame
Mildred Pierce
Six Feet Under
Answer: Dark Shadows
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "television series" . ?e <producer> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "human" . ?e_2 <screenwriter> ?e_1 . ?e_2 <pred:name> "Dark Shadows" . ?e_2 <film_release_region> ?e_3 . ?e_3 <pred:name> "Argentina" .   }
Program:
function: Find
inputs: Argentina
function: Relate
dependencies: 0
inputs: film release region
backward
function: Find
inputs: Dark Shadows
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: screenwriter
forward
function: FilterConcept
dependencies: 4
inputs: human
function: Relate
dependencies: 5
inputs: producer
backward
function: FilterConcept
dependencies: 6
inputs: television series
function: What
dependencies: 7