Question: What is the Twitter username of the communication medium that uses the language Korean?
Choices: destinyschild
HellasVeronaFC
orsonscottcard
IBM
Sethrogen
PeabodyAwards
QueenWillRock
Forbes
zenitjapan
UKLabour
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "communication medium" . ?e <language_of_work_or_name> ?e_1 . ?e_1 <pred:name> "Korean" .  ?e <Twitter_username> ?pv .  }
Program:
function: Find
inputs: Korean
function: Relate
dependencies: 0
inputs: language of work or name
backward
function: FilterConcept
dependencies: 1
inputs: communication medium
function: QueryAttr
dependencies: 2
inputs: Twitter username
Answer: Forbes