Question: What is the number of silent films that Cedric Gibbons designed?
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Answer: 1
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "silent film" . ?e <production_designer> ?e_1 . ?e_1 <pred:name> "Cedric Gibbons" .   }
Program:
function: Find
inputs: Cedric Gibbons
function: Relate
dependencies: 0
inputs: production designer
backward
function: FilterConcept
dependencies: 1
inputs: silent film
function: Count
dependencies: 2