Question: Is 1966-10-19 the birth date of Edgar Allan Poe (the one that influenced Fyodor Dostoyevsky)?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: no
SPARQL: ASK { ?e <pred:name> "Edgar Allan Poe" . ?e_1 <influenced_by> ?e . ?e_1 <pred:name> "Fyodor Dostoyevsky" .  ?e <date_of_birth> ?pv . ?pv <pred:date> "1966-10-19"^^xsd:date .  }
Program:
function: Find
inputs: Fyodor Dostoyevsky
function: Relate
dependencies: 0
inputs: influenced by
forward
function: Find
inputs: Edgar Allan Poe
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth
function: VerifyDate
dependencies: 4
inputs: 1966-10-19
=