Question: How many plucked string instruments are known by a famous person whose Munzinger IBA is 00000017621   ?
Choices:
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Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Munzinger IBA
00000017621
function: FilterConcept
dependencies: 1
inputs: human
function: Relate
dependencies: 2
inputs: famous people
backward
function: FilterConcept
dependencies: 3
inputs: plucked string instrument
function: Count
dependencies: 4
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "plucked string instrument" . ?e <famous_people> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "human" . ?e_1 <Munzinger_IBA> ?pv_1 . ?pv_1 <pred:value> "00000017621" .   }
Answer: 1