Question: Is the date of birth after 1893 for John Wood who died on 1959-01-01?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "John Wood" . ?e <date_of_death> ?pv_1 . ?pv_1 <pred:date> "1959-01-01"^^xsd:date . ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v > 1893 ) .  }
Program:
function: Find
inputs: John Wood
function: FilterDate
dependencies: 0
inputs: date of death
1959-01-01
=
function: QueryAttr
dependencies: 1
inputs: date of birth
function: VerifyYear
dependencies: 2
inputs: 1893
>
Answer: no