Question: Where was the visual artwork that mainly depicts Howard Hughes published on 2005-01-20?
Choices:
Romania
Berlin
Sydney
Beverly Hills
Germany
Chile
European Union
Europe
Israel
Lithuania
Answer: Germany
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "visual artwork" . ?e <main_subject> ?e_1 . ?e_1 <pred:name> "Howard Hughes" .  ?e <publication_date> ?pv . ?pv <pred:date> "2005-01-20"^^xsd:date . [ <pred:fact_h> ?e ; <pred:fact_r> <publication_date> ; <pred:fact_t> ?pv ] <place_of_publication> ?qpv .  }
Program:
function: Find
inputs: Howard Hughes
function: Relate
dependencies: 0
inputs: main subject
backward
function: FilterConcept
dependencies: 1
inputs: visual artwork
function: QueryAttrQualifier
dependencies: 2
inputs: publication date
2005-01-20
place of publication