Question: Does the video game, which has 20th Century Fox as its distributor, have a publication date not in 1989?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "video game" . ?e <distributor> ?e_1 . ?e_1 <pred:name> "20th Century Fox" .  ?e <publication_date> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1989 ) .  }
Program:
function: Find
inputs: 20th Century Fox
function: Relate
dependencies: 0
inputs: distributor
backward
function: FilterConcept
dependencies: 1
inputs: video game
function: QueryAttr
dependencies: 2
inputs: publication date
function: VerifyYear
dependencies: 3
inputs: 1989
!=
Answer: yes