Question: What is the publication date for the album whose composer is Andrew Lloyd Webber?
Choices:
1994-06-15
2011-10-23
1987-12-16
2017-03-03
1982-06-11
1997-11-21
2013-10-03
1988-11-23
2001-03-01
1970
Program:
function: Find
inputs: Andrew Lloyd Webber
function: Relate
dependencies: 0
inputs: composer
backward
function: FilterConcept
dependencies: 1
inputs: album
function: QueryAttr
dependencies: 2
inputs: publication date
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "album" . ?e <composer> ?e_1 . ?e_1 <pred:name> "Andrew Lloyd Webber" .  ?e <publication_date> ?pv .  }
Answer: 1970