Question: What is the publication date of the visual artwork that mainly depicts the Gallipoli Campaign?
Choices: 2005-07-25
2002-11-14
2011-02-13
1995-11-07
1981-01-01
2008-06-21
2009-08-27
1999-03-06
2016-03-24
2018-11-21
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "visual artwork" . ?e <main_subject> ?e_1 . ?e_1 <pred:name> "Gallipoli Campaign" .  ?e <publication_date> ?pv .  }
Program:
function: Find
inputs: Gallipoli Campaign
function: Relate
dependencies: 0
inputs: main subject
backward
function: FilterConcept
dependencies: 1
inputs: visual artwork
function: QueryAttr
dependencies: 2
inputs: publication date
Answer: 1981-01-01