Question: Would a birth date prior to 1971 be accurate for Scottsdale worker John Powell?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "John Powell" . ?e <work_location> ?e_1 . ?e_1 <pred:name> "Scottsdale" .  ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1971 ) .  }
Program:
function: Find
inputs: Scottsdale
function: Relate
dependencies: 0
inputs: work location
backward
function: Find
inputs: John Powell
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth
function: VerifyYear
dependencies: 4
inputs: 1971
<
Answer: yes