Question: What is the release date of the single whose composer is Neil Young who is famous for Southern rock?
Choices: 2006-11-17
2000-08-31
2005-04-07
1954-11-05
2015-09-26
2007
2003-05-21
1979-08-18
1985-02-22
1974-03-07
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "single" . ?e <composer> ?e_1 . ?e_1 <pred:name> "Neil Young" . ?e_2 <famous_people> ?e_1 . ?e_2 <pred:name> "Southern rock" .  ?e <publication_date> ?pv .  }
Program:
function: Find
inputs: Southern rock
function: Relate
dependencies: 0
inputs: famous people
forward
function: Find
inputs: Neil Young
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: composer
backward
function: FilterConcept
dependencies: 4
inputs: single
function: QueryAttr
dependencies: 5
inputs: publication date
Answer: 2007