Question: What is the Twitter username of Stephen Harper?
Choices:
danwarp
LauraBaileyVO
cher
WhiteSox
jgarlin
robertcarlyle_
OliverPlatt
MikeJudge
OficialFlu
pmharper
Answer: pmharper
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Stephen Harper" . ?e <Twitter_username> ?pv .  }
Program:
function: Find
inputs: Stephen Harper
function: QueryAttr
dependencies: 0
inputs: Twitter username