Question: Is the date of birth after of Yuma (the one that is the citizen of Spain) after 1928 ?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Program:
function: Find
inputs: Spain
function: Relate
dependencies: 0
inputs: country of citizenship
backward
function: Find
inputs: Yuma
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth
function: VerifyYear
dependencies: 4
inputs: 1928
>
SPARQL: ASK { ?e <pred:name> "Yuma" . ?e <country_of_citizenship> ?e_1 . ?e_1 <pred:name> "Spain" .  ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v > 1928 ) .  }
Answer: yes