Question: Was the multiplayer video game Rocky released prior to 1988?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "Rocky" . ?e <game_mode> ?e_1 . ?e_1 <pred:name> "multiplayer video game" .  ?e <publication_date> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1988 ) .  }
Program:
function: Find
inputs: multiplayer video game
function: Relate
dependencies: 0
inputs: game mode
backward
function: Find
inputs: Rocky
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: publication date
function: VerifyYear
dependencies: 4
inputs: 1988
<