Question: How many keyboard instruments are used by the person whose pseudonym is Ari Tomos (in English)?
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SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "keyboard instrument" . ?e_1 <instrument> ?e . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "human" . ?e_1 <pseudonym> ?pv . ?pv <pred:value> "Ari Tomos" . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <pseudonym> ; <pred:fact_t> ?pv ] <language_of_work_or_name> ?qpv . ?qpv <pred:value> "English" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: pseudonym
Ari Tomos
function: QFilterStr
dependencies: 1
inputs: language of work or name
English
function: FilterConcept
dependencies: 2
inputs: human
function: Relate
dependencies: 3
inputs: instrument
forward
function: FilterConcept
dependencies: 4
inputs: keyboard instrument
function: Count
dependencies: 5
Answer: 2