Question: When was an album issued on which Jonas Brothers (the one that has a member Kevin Jonas) performs?
Choices:
2014-06-06
2009-08-20
2007-08-07
1928-08-17
1986-02-13
2013-05-01
1985-02-20
1981-09-17
2013-03-29
2015-09-20
Program:
function: Find
inputs: Kevin Jonas
function: Relate
dependencies: 0
inputs: member of
forward
function: Find
inputs: Jonas Brothers
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: performer
backward
function: FilterConcept
dependencies: 4
inputs: album
function: QueryAttr
dependencies: 5
inputs: publication date
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "album" . ?e <performer> ?e_1 . ?e_1 <pred:name> "Jonas Brothers" . ?e_2 <member_of> ?e_1 . ?e_2 <pred:name> "Kevin Jonas" .  ?e <publication_date> ?pv .  }
Answer: 2007-08-07