Question: Is 1936 the date of birth for John Osborne (the one that is buried in Arlington National Cemetery)?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Program:
function: Find
inputs: Arlington National Cemetery
function: Relate
dependencies: 0
inputs: place of burial
backward
function: Find
inputs: John Osborne
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth
function: VerifyYear
dependencies: 4
inputs: 1936
!=
SPARQL: ASK { ?e <pred:name> "John Osborne" . ?e <place_of_burial> ?e_1 . ?e_1 <pred:name> "Arlington National Cemetery" .  ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1936 ) .  }
Answer: yes