Question: The visual artwork titled Christoph Columbus was released on what date?
Choices: 1992-08-03
1923-01-01
2010-01-14
1970-11-01
2008-12-21
1925
2011-04-08
1918-01-01
1976-12-10
1999-05-19
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "visual artwork" . ?e <title> ?pv_1 . ?pv_1 <pred:value> "Christoph Columbus" . ?e <publication_date> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: title
Christoph Columbus
function: FilterConcept
dependencies: 1
inputs: visual artwork
function: QueryAttr
dependencies: 2
inputs: publication date
Answer: 1923-01-01