Question: Which real-time strategy video game is distributed on DVD?
Choices:
Harry Potter and the Half-Blood Prince
Transformers: Revenge of the Fallen
Transformers: Dark of the Moon
Astro Boy
The Fast and the Furious
Alexander
Constantine
East India Company
Medal of Honor
Batman
Answer: East India Company
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "video game" . ?e <genre> ?e_1 . ?e_1 <pred:name> "real-time strategy" .  ?e <distribution> ?e_2 . ?e_2 <pred:name> "DVD" .  }
Program:
function: Find
inputs: real-time strategy
function: Relate
dependencies: 0
inputs: genre
backward
function: FilterConcept
dependencies: 1
inputs: video game
function: Find
inputs: DVD
function: Relate
dependencies: 3
inputs: distribution
backward
function: FilterConcept
dependencies: 4
inputs: video game
function: And
dependencies: 2
5
function: What
dependencies: 6