Question: What is the number of actors that work in the performing arts field
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Answer: 2
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "actor" . ?e <field_of_this_occupation> ?e_1 . ?e_1 <pred:name> "performing arts" .   }
Program:
function: Find
inputs: performing arts
function: Relate
dependencies: 0
inputs: field of this occupation
backward
function: FilterConcept
dependencies: 1
inputs: actor
function: Count
dependencies: 2