Question: How many stringed musical instruments created later than 1500 are played by a harpsichordist?
Choices:
0
1
2
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9
Answer: 0
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "string instrument" . ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v > 1500 ) . ?e <used_by> ?e_1 . ?e_1 <pred:name> "harpsichordist" .  }
Program:
function: FindAll
function: FilterYear
dependencies: 0
inputs: inception
1500
>
function: FilterConcept
dependencies: 1
inputs: string instrument
function: Find
inputs: harpsichordist
function: Relate
dependencies: 3
inputs: used by
backward
function: FilterConcept
dependencies: 4
inputs: string instrument
function: And
dependencies: 2
5
function: Count
dependencies: 6