Question: Does Changsha have an official name of Preston North End Football Club?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Changsha" . ?e <official_name> ?pv . ?pv <pred:value> "Preston North End Football Club" .  }
Program:
function: Find
inputs: Changsha
function: QueryAttr
dependencies: 0
inputs: official name
function: VerifyStr
dependencies: 1
inputs: Preston North End Football Club
Answer: no