Question: Is RealCliveBarker the Twitter username of Clive Barker (the one that is an ethnic group of English people)?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Clive Barker" . ?e <ethnic_group> ?e_1 . ?e_1 <pred:name> "English people" .  ?e <Twitter_username> ?pv . ?pv <pred:value> "RealCliveBarker" .  }
Program:
function: Find
inputs: English people
function: Relate
dependencies: 0
inputs: ethnic group
backward
function: Find
inputs: Clive Barker
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: Twitter username
function: VerifyStr
dependencies: 4
inputs: RealCliveBarker
Answer: yes