Question: When was the video game directed by John G. Avildsen published?
Choices: 2007-01-11
1950-01-06
1987-04-19
2001-11-02
2004-07-20
2005-01-13
1991-10-24
2005-06-24
2002-07-22
2007-10-03
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "video game" . ?e <director> ?e_1 . ?e_1 <pred:name> "John G. Avildsen" .  ?e <publication_date> ?pv .  }
Program:
function: Find
inputs: John G. Avildsen
function: Relate
dependencies: 0
inputs: director
backward
function: FilterConcept
dependencies: 1
inputs: video game
function: QueryAttr
dependencies: 2
inputs: publication date
Answer: 1987-04-19