Question: How many cemeteries were created for the United States Air Force before 1839?
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SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "cemetery" . ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1839 ) . ?e <religion> ?e_1 . ?e_1 <pred:name> "United States Department of the Air Force" .  }
Program:
function: FindAll
function: FilterYear
dependencies: 0
inputs: inception
1839
<
function: FilterConcept
dependencies: 1
inputs: cemetery
function: Find
inputs: United States Department of the Air Force
function: Relate
dependencies: 3
inputs: religion
backward
function: FilterConcept
dependencies: 4
inputs: cemetery
function: And
dependencies: 2
5
function: Count
dependencies: 6
Answer: 0