Question: Is the Hornbostel-Sachs classification for an electric piano famous for D'Angelo, 422.211.2-71 ?
Choices: yes
no
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SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "electric piano" . ?e <famous_people> ?e_1 . ?e_1 <pred:name> "D'Angelo" .  ?e <Hornbostel-Sachs_classification> ?pv . ?pv <pred:value> "422.211.2-71" .  }
Program:
function: Find
inputs: D'Angelo
function: Relate
dependencies: 0
inputs: famous people
backward
function: FilterConcept
dependencies: 1
inputs: electric piano
function: QueryAttr
dependencies: 2
inputs: Hornbostel-Sachs classification
function: VerifyStr
dependencies: 3
inputs: 422.211.2-71
Answer: no