Question: When was the album that derives Tommy (the one that has Pete Townshend as a cast member) published?
Choices: 2017-05-11
2017-06-23
2004-09-09
1969-05-23
2012-03-08
2002-11-01
1998-05-18
2004-03-05
1989-02-09
1993-01-14
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "album" . ?e <derivative_work> ?e_1 . ?e_1 <pred:name> "Tommy" . ?e_1 <cast_member> ?e_2 . ?e_2 <pred:name> "Pete Townshend" .  ?e <publication_date> ?pv .  }
Program:
function: Find
inputs: Pete Townshend
function: Relate
dependencies: 0
inputs: cast member
backward
function: Find
inputs: Tommy
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: derivative work
backward
function: FilterConcept
dependencies: 4
inputs: album
function: QueryAttr
dependencies: 5
inputs: publication date
Answer: 1969-05-23