Question: Dewey Decimal Classification 788.65 refers to how many instrument classes?
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SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "class of instruments" . ?e <Dewey_Decimal_Classification> ?pv . ?pv <pred:value> "788.65" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Dewey Decimal Classification
788.65
function: FilterConcept
dependencies: 1
inputs: class of instruments
function: Count
dependencies: 2
Answer: 1