Question: Is Len Wein's date of death before 1992?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: no
SPARQL: ASK { ?e <pred:name> "Len Wein" . ?e <date_of_death> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1992 ) .  }
Program:
function: Find
inputs: Len Wein
function: QueryAttr
dependencies: 0
inputs: date of death
function: VerifyYear
dependencies: 1
inputs: 1992
<