Question: Was the visual artwork directed by Irwin Winkler published in Germany prior to 1991?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: no
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "visual artwork" . ?e <director> ?e_1 . ?e_1 <pred:name> "Irwin Winkler" .  ?e <publication_date> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1991 ) . [ <pred:fact_h> ?e ; <pred:fact_r> <publication_date> ; <pred:fact_t> ?pv ] <place_of_publication> ?qpv . ?qpv <pred:value> "Germany" .  }
Program:
function: Find
inputs: Irwin Winkler
function: Relate
dependencies: 0
inputs: director
backward
function: FilterConcept
dependencies: 1
inputs: visual artwork
function: QueryAttrUnderCondition
dependencies: 2
inputs: publication date
place of publication
Germany
function: VerifyYear
dependencies: 3
inputs: 1991
<