Question: Does Libris-URI c9pszhgw1qqktjl identify US citizen Winston Churchill?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: no
SPARQL: ASK { ?e <pred:name> "Winston Churchill" . ?e <country_of_citizenship> ?e_1 . ?e_1 <pred:name> "United States of America" .  ?e <Libris-URI> ?pv . ?pv <pred:value> "c9pszhgw1qqktjl" .  }
Program:
function: Find
inputs: United States of America
function: Relate
dependencies: 0
inputs: country of citizenship
backward
function: Find
inputs: Winston Churchill
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: Libris-URI
function: VerifyStr
dependencies: 4
inputs: c9pszhgw1qqktjl