Question: What is the number of sounds whose origination date is before 1920?
Choices:
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Answer: 3
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "sound" . ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1920 ) .  }
Program:
function: FindAll
function: FilterYear
dependencies: 0
inputs: inception
1920
<
function: FilterConcept
dependencies: 1
inputs: sound
function: Count
dependencies: 2