Question: What is the number of mechanical waves that is the instrument used by the person that has the British Museum person-institution is 204794.
Choices:
1
2
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4
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10
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: British Museum person-institution
204794
function: FilterConcept
dependencies: 1
inputs: human
function: Relate
dependencies: 2
inputs: instrument
forward
function: FilterConcept
dependencies: 3
inputs: mechanical wave
function: Count
dependencies: 4
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "mechanical wave" . ?e_1 <instrument> ?e . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "human" . ?e_1 <British_Museum_person-institution> ?pv . ?pv <pred:value> "204794" .   }
Answer: 1