Question: Did Jim Clark (the one whose date of birth is 1922-09-17) not die in 1920?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Jim Clark" . ?e <date_of_birth> ?pv_1 . ?pv_1 <pred:date> "1922-09-17"^^xsd:date . ?e <date_of_death> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1920 ) .  }
Program:
function: Find
inputs: Jim Clark
function: FilterDate
dependencies: 0
inputs: date of birth
1922-09-17
=
function: QueryAttr
dependencies: 1
inputs: date of death
function: VerifyYear
dependencies: 2
inputs: 1920
!=
Answer: yes