Question: Was black metal created after 1777?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Program:
function: Find
inputs: black metal
function: QueryAttr
dependencies: 0
inputs: inception
function: VerifyYear
dependencies: 1
inputs: 1777
>
SPARQL: ASK { ?e <pred:name> "black metal" . ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v > 1777 ) .  }
Answer: yes