Question: Is the date of birth for Roger Moore (whose floruit is 1968) before 1957?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "Roger Moore" . ?e <floruit> ?pv_1 . ?pv_1 <pred:year> 1968 . ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1957 ) .  }
Program:
function: Find
inputs: Roger Moore
function: FilterYear
dependencies: 0
inputs: floruit
1968
=
function: QueryAttr
dependencies: 1
inputs: date of birth
function: VerifyYear
dependencies: 2
inputs: 1957
<