Question: How many string instruments are the instrumentation of Massachusetts (whose composer is Robin Gibb)?
Choices: 0
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SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "string instrument" . ?e_1 <instrumentation> ?e . ?e_1 <pred:name> "Massachusetts" . ?e_1 <composer> ?e_2 . ?e_2 <pred:name> "Robin Gibb" .   }
Program:
function: Find
inputs: Robin Gibb
function: Relate
dependencies: 0
inputs: composer
backward
function: Find
inputs: Massachusetts
function: And
dependencies: 1
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function: Relate
dependencies: 3
inputs: instrumentation
forward
function: FilterConcept
dependencies: 4
inputs: string instrument
function: Count
dependencies: 5
Answer: 0