Question: Is Sarah Brightman's Twitter username sarahbrightman?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "Sarah Brightman" . ?e <Twitter_username> ?pv . ?pv <pred:value> "sarahbrightman" .  }
Program:
function: Find
inputs: Sarah Brightman
function: QueryAttr
dependencies: 0
inputs: Twitter username
function: VerifyStr
dependencies: 1
inputs: sarahbrightman