Question: What is the publication date for Christopher Cross (the one whose genre is pop music)?
Choices: 2006-12-14
2003-07-31
1979
1996-12-06
2012-05-31
2016-01-07
2009-12-25
2006-03-15
2018-11-29
1923-11-23
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Christopher Cross" . ?e <genre> ?e_1 . ?e_1 <pred:name> "pop music" .  ?e <publication_date> ?pv .  }
Program:
function: Find
inputs: pop music
function: Relate
dependencies: 0
inputs: genre
backward
function: Find
inputs: Christopher Cross
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: publication date
Answer: 1979