Question: What are the number of states of Germany whose German regional key is 01 ?
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Answer: 1
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "state of Germany" . ?e <German_regional_key> ?pv . ?pv <pred:value> "01" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: German regional key
01
function: FilterConcept
dependencies: 1
inputs: state of Germany
function: Count
dependencies: 2