Question: Was the US version of A Christmas Carol not published in 1992?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "A Christmas Carol" . ?e <country> ?e_1 . ?e_1 <pred:name> "United States of America" .  ?e <publication_date> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1992 ) .  }
Program:
function: Find
inputs: United States of America
function: Relate
dependencies: 0
inputs: country
backward
function: Find
inputs: A Christmas Carol
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: publication date
function: VerifyYear
dependencies: 4
inputs: 1992
!=