Question: What's the Twitter handle of the TV network based in South Korea?
Choices:
brentspiner
AlfreWoodard
sbsnow
PattyArquette
jfreewright
UniofReading
GarySinise
prince
HullCity
Kurt_Vonnegut
Answer: sbsnow
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "television network" . ?e <country> ?e_1 . ?e_1 <pred:name> "South Korea" .  ?e <Twitter_username> ?pv .  }
Program:
function: Find
inputs: South Korea
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: television network
function: QueryAttr
dependencies: 2
inputs: Twitter username