Question: Does Greg Graffin go by the Twitter handle GoldmanSachs ?
Choices: yes
no
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SPARQL: ASK { ?e <pred:name> "Greg Graffin" . ?e <Twitter_username> ?pv . ?pv <pred:value> "GoldmanSachs" .  }
Program:
function: Find
inputs: Greg Graffin
function: QueryAttr
dependencies: 0
inputs: Twitter username
function: VerifyStr
dependencies: 1
inputs: GoldmanSachs
Answer: no