Question: When was Superman (the one whose game mode is multiplayer video game) published?
Choices:
2006-12-21
2011-01-06
1960-10-24
2009-09-01
1978-11-17
2014-07-23
2009-02-19
2012-06-18
1972
1999-05-31
Program:
function: Find
inputs: multiplayer video game
function: Relate
dependencies: 0
inputs: game mode
backward
function: Find
inputs: Superman
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: publication date
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Superman" . ?e <game_mode> ?e_1 . ?e_1 <pred:name> "multiplayer video game" .  ?e <publication_date> ?pv .  }
Answer: 1999-05-31