Question: What number of superheros are published by DC Comics?
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Answer: 2
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "superhero" . ?e <publisher> ?e_1 . ?e_1 <pred:name> "DC Comics" .   }
Program:
function: Find
inputs: DC Comics
function: Relate
dependencies: 0
inputs: publisher
backward
function: FilterConcept
dependencies: 1
inputs: superhero
function: Count
dependencies: 2