Question: Was Gary Barber born on 1957-01-01?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Gary Barber" . ?e <date_of_birth> ?pv . ?pv <pred:date> "1957-01-01"^^xsd:date .  }
Program:
function: Find
inputs: Gary Barber
function: QueryAttr
dependencies: 0
inputs: date of birth
function: VerifyDate
dependencies: 1
inputs: 1957-01-01
=
Answer: yes