Question: Was the Grammy Award for Best Contemporary Blues Album conceived before 1991?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Program:
function: Find
inputs: Grammy Award for Best Contemporary Blues Album
function: QueryAttr
dependencies: 0
inputs: inception
function: VerifyYear
dependencies: 1
inputs: 1991
<
SPARQL: ASK { ?e <pred:name> "Grammy Award for Best Contemporary Blues Album" . ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1991 ) .  }
Answer: yes