Question: What is the number of heavy metal genres that Iron Maiden has and that were started before 1988?
Choices:
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Answer: 1
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "heavy metal" . ?e_1 <genre> ?e . ?e_1 <pred:name> "Iron Maiden" .  ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1988 ) .  }
Program:
function: Find
inputs: Iron Maiden
function: Relate
dependencies: 0
inputs: genre
forward
function: FilterConcept
dependencies: 1
inputs: heavy metal
function: FindAll
function: FilterYear
dependencies: 3
inputs: inception
1988
<
function: FilterConcept
dependencies: 4
inputs: heavy metal
function: And
dependencies: 2
5
function: Count
dependencies: 6