Question: When was Carry On (the one whose composer is Stephen Stills) published?
Choices: 2002-05-24
1970
2006-05-22
2004-04-16
1971-01-01
2011-06-10
2005-07-25
1977-01-28
1992-03-20
2012-07-03
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Carry On" . ?e <composer> ?e_1 . ?e_1 <pred:name> "Stephen Stills" .  ?e <publication_date> ?pv .  }
Program:
function: Find
inputs: Stephen Stills
function: Relate
dependencies: 0
inputs: composer
backward
function: Find
inputs: Carry On
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: publication date
Answer: 1970