Question: Is John Roger Stephens the birth name of John Legend?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "John Legend" . ?e <birth_name> ?pv . ?pv <pred:value> "John Roger Stephens" .  }
Program:
function: Find
inputs: John Legend
function: QueryAttr
dependencies: 0
inputs: birth name
function: VerifyStr
dependencies: 1
inputs: John Roger Stephens
Answer: yes