Question: tell me the publication date for the movie that has Tangerine Dream as a performer
Choices:
2002-05-16
2007-12-10
2004-09-13
1990-07-26
1989-01-01
2020-03-26
2009-10-14
1996-03-08
2002-08-08
2019-01-10
Program:
function: Find
inputs: Tangerine Dream
function: Relate
dependencies: 0
inputs: performer
backward
function: FilterConcept
dependencies: 1
inputs: film
function: QueryAttr
dependencies: 2
inputs: publication date
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "film" . ?e <performer> ?e_1 . ?e_1 <pred:name> "Tangerine Dream" .  ?e <publication_date> ?pv .  }
Answer: 1989-01-01