Question: Was Jon Anderson that is famous for New Age music born before 1987?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Jon Anderson" . ?e_1 <famous_people> ?e . ?e_1 <pred:name> "New Age music" .  ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1987 ) .  }
Program:
function: Find
inputs: New Age music
function: Relate
dependencies: 0
inputs: famous people
forward
function: Find
inputs: Jon Anderson
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: date of birth
function: VerifyYear
dependencies: 4
inputs: 1987
<
Answer: yes