Question: Does Frank Skinner (the one that is the composer of Saboteur) have a birth date before 1950?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:name> "Frank Skinner" . ?e_1 <composer> ?e . ?e_1 <pred:name> "Saboteur" .  ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1950 ) .  }
Program:
function: Find
inputs: Saboteur
function: Relate
dependencies: 0
inputs: composer
forward
function: Find
inputs: Frank Skinner
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth
function: VerifyYear
dependencies: 4
inputs: 1950
<