Question: How many contemporary folk music pieces are connected to famous Ray Charles (piano player) ?
Choices:
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Answer: 1
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "contemporary folk music" . ?e <famous_people> ?e_1 . ?e_1 <pred:name> "Ray Charles" . ?e_1 <instrument> ?e_2 . ?e_2 <pred:name> "piano" .   }
Program:
function: Find
inputs: piano
function: Relate
dependencies: 0
inputs: instrument
backward
function: Find
inputs: Ray Charles
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: famous people
backward
function: FilterConcept
dependencies: 4
inputs: contemporary folk music
function: Count
dependencies: 5