Question: Did Mary Astor die before 2001?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Mary Astor" . ?e <date_of_death> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 2001 ) .  }
Program:
function: Find
inputs: Mary Astor
function: QueryAttr
dependencies: 0
inputs: date of death
function: VerifyYear
dependencies: 1
inputs: 2001
<
Answer: yes