Question: What is the publication date of the album produced by Yes, a famous symphonic rock group?
Choices: 2004-04-16
1930-04-08
2007-09-01
1995-07-27
2007-06-06
1980-12-04
1968-04-02
1969-07-25
1998-02-12
1952-06-06
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "album" . ?e <performer> ?e_1 . ?e_1 <pred:name> "Yes" . ?e_2 <famous_people> ?e_1 . ?e_2 <pred:name> "symphonic rock" .  ?e <publication_date> ?pv .  }
Program:
function: Find
inputs: symphonic rock
function: Relate
dependencies: 0
inputs: famous people
forward
function: Find
inputs: Yes
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
Answer: 1969-07-25