Question: What is the release date of Dover that mainly portrays World War II?
Choices:
1993-08-12
1991-10-10
1943-01-01
1991-12-06
1994-11-11
1975-09-25
2007-04-06
2016-10-20
2005-11-06
2008-01-25
Answer: 1943-01-01
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Dover" . ?e <main_subject> ?e_1 . ?e_1 <pred:name> "World War II" .  ?e <publication_date> ?pv .  }
Program:
function: Find
inputs: World War II
function: Relate
dependencies: 0
inputs: main subject
backward
function: Find
inputs: Dover
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: publication date