Question: How many hardcore punk groups were established before 1987?
Choices:
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Answer: 1
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "hardcore punk" . ?e <inception> ?pv . ?pv <pred:year> 1987 .  }
Program:
function: FindAll
function: FilterYear
dependencies: 0
inputs: inception
1987
=
function: FilterConcept
dependencies: 1
inputs: hardcore punk
function: Count
dependencies: 2