Question: Was Joan of Arc (the one whose producer is Walter Wanger) published after 1938?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Program:
function: Find
inputs: Walter Wanger
function: Relate
dependencies: 0
inputs: producer
backward
function: Find
inputs: Joan of Arc
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: publication date
function: VerifyYear
dependencies: 4
inputs: 1938
>
SPARQL: ASK { ?e <pred:name> "Joan of Arc" . ?e <producer> ?e_1 . ?e_1 <pred:name> "Walter Wanger" .  ?e <publication_date> ?pv . ?pv <pred:year> ?v . FILTER ( ?v > 1938 ) .  }
Answer: yes