Question: How many songs had a publication date before 1964?
Choices: 0
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SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "song" . ?e <publication_date> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1964 ) .  }
Program:
function: FindAll
function: FilterYear
dependencies: 0
inputs: publication date
1964
<
function: FilterConcept
dependencies: 1
inputs: song
function: Count
dependencies: 2
Answer: 1