Question: How many musical compositions have lyrics that were written by John Lennon?
Choices:
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Answer: 2
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "musical composition" . ?e <lyrics_by> ?e_1 . ?e_1 <pred:name> "John Lennon" .   }
Program:
function: Find
inputs: John Lennon
function: Relate
dependencies: 0
inputs: lyrics by
backward
function: FilterConcept
dependencies: 1
inputs: musical composition
function: Count
dependencies: 2