Question: What is the publication date of the visual artwork produced in Switzerland?
Choices:
1986-01-01
2003-10-20
2014-12-04
1971-06-09
2011-01-06
2013-07-03
1978-03-03
1987-06-26
1954-07-29
1970-02-04
Program:
function: Find
inputs: Switzerland
function: Relate
dependencies: 0
inputs: country
backward
function: FilterConcept
dependencies: 1
inputs: visual artwork
function: QueryAttr
dependencies: 2
inputs: publication date
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "visual artwork" . ?e <country> ?e_1 . ?e_1 <pred:name> "Switzerland" .  ?e <publication_date> ?pv .  }
Answer: 1986-01-01