Question: Is Glen A. Larson's date of birth prior to 1961?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Glen A. Larson" . ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1961 ) .  }
Program:
function: Find
inputs: Glen A. Larson
function: QueryAttr
dependencies: 0
inputs: date of birth
function: VerifyYear
dependencies: 1
inputs: 1961
<
Answer: yes