Question: Was Nikon, who died on 1995-04-13, not born in 1875?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "Nikon" . ?e <date_of_death> ?pv_1 . ?pv_1 <pred:date> "1995-04-13"^^xsd:date . ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1875 ) .  }
Program:
function: Find
inputs: Nikon
function: FilterDate
dependencies: 0
inputs: date of death
1995-04-13
=
function: QueryAttr
dependencies: 1
inputs: date of birth
function: VerifyYear
dependencies: 2
inputs: 1875
!=