Question: What number of belief systems are there with an OSM tag or key equal to Tag:denomination=lutheran?
Choices:
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Answer: 1
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "belief system" . ?e <OSM_tag_or_key> ?pv . ?pv <pred:value> "Tag:denomination=lutheran" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: OSM tag or key
Tag:denomination=lutheran
function: FilterConcept
dependencies: 1
inputs: belief system
function: Count
dependencies: 2