Question: Where was David Copperfield with publication date 1999-12-26 and production company PBS published?
Choices: Chile
2005 Cannes Film Festival
Venezuela
Taiwan
Argentina
Belgium
Norway
United Kingdom
Estonia
Bulgaria
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "David Copperfield" . ?e <production_company> ?e_1 . ?e_1 <pred:name> "PBS" .  ?e <publication_date> ?pv . ?pv <pred:date> "1999-12-26"^^xsd:date . [ <pred:fact_h> ?e ; <pred:fact_r> <publication_date> ; <pred:fact_t> ?pv ] <place_of_publication> ?qpv .  }
Program:
function: Find
inputs: PBS
function: Relate
dependencies: 0
inputs: production company
backward
function: Find
inputs: David Copperfield
function: And
dependencies: 1
2
function: QueryAttrQualifier
dependencies: 3
inputs: publication date
1999-12-26
place of publication
Answer: United Kingdom