Question: Is Rory Gallagher's date of death before 2009?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Rory Gallagher" . ?e <date_of_death> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 2009 ) .  }
Program:
function: Find
inputs: Rory Gallagher
function: QueryAttr
dependencies: 0
inputs: date of death
function: VerifyYear
dependencies: 1
inputs: 2009
<
Answer: yes