Question: Was a kind of pop rock, known by the famous, American English-speaking Peter Buck, created after 1814 ?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "pop rock" . ?e <famous_people> ?e_1 . ?e_1 <pred:name> "Peter Buck" . ?e_1 <languages_spoken,_written_or_signed> ?e_2 . ?e_2 <pred:name> "American English" .  ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v > 1814 ) .  }
Program:
function: Find
inputs: American English
function: Relate
dependencies: 0
inputs: languages spoken, written or signed
backward
function: Find
inputs: Peter Buck
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: famous people
backward
function: FilterConcept
dependencies: 4
inputs: pop rock
function: QueryAttr
dependencies: 5
inputs: inception
function: VerifyYear
dependencies: 6
inputs: 1814
>
Answer: yes