Question: Where was the visual artwork that is a derivative work of David Copperfield (which is authored by Charles Dickens) published on 1999-12-25?
Choices: People's Republic of China
Washington, D.C.
Croatia
worldwide
Spain
German Democratic Republic
Mexico
United Kingdom
South Korea
Singapore
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "visual artwork" . ?e_1 <derivative_work> ?e . ?e_1 <pred:name> "David Copperfield" . ?e_1 <author> ?e_2 . ?e_2 <pred:name> "Charles Dickens" .  ?e <publication_date> ?pv . ?pv <pred:date> "1999-12-25"^^xsd:date . [ <pred:fact_h> ?e ; <pred:fact_r> <publication_date> ; <pred:fact_t> ?pv ] <place_of_publication> ?qpv .  }
Program:
function: Find
inputs: Charles Dickens
function: Relate
dependencies: 0
inputs: author
backward
function: Find
inputs: David Copperfield
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: derivative work
forward
function: FilterConcept
dependencies: 4
inputs: visual artwork
function: QueryAttrQualifier
dependencies: 5
inputs: publication date
1999-12-25
place of publication
Answer: United Kingdom