Question: When was the public release of the film series which includes National Treasure: Book of Secrets?
Choices:
1979-05-10
2008-08-23
2007-12-21
2008-07-17
2001-05-18
2012-07-11
1965-12-09
1989-09-23
1984-11-01
2004-04-01
Program:
function: Find
inputs: National Treasure: Book of Secrets
function: Relate
dependencies: 0
inputs: has part
backward
function: FilterConcept
dependencies: 1
inputs: film series
function: QueryAttr
dependencies: 2
inputs: publication date
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "film series" . ?e <has_part> ?e_1 . ?e_1 <pred:name> "National Treasure: Book of Secrets" .  ?e <publication_date> ?pv .  }
Answer: 2007-12-21