Question: When was the album produced by Babyface published?
Choices:
2009-12-03
2005-11-17
1994-01-01
1993-07-13
2010-07-19
1986-07-18
1972-01-26
1991-01-17
2012-12-26
2012-03-08
Answer: 1993-07-13
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "album" . ?e <producer> ?e_1 . ?e_1 <pred:name> "Babyface" .  ?e <publication_date> ?pv .  }
Program:
function: Find
inputs: Babyface
function: Relate
dependencies: 0
inputs: producer
backward
function: FilterConcept
dependencies: 1
inputs: album
function: QueryAttr
dependencies: 2
inputs: publication date