Question: What number of sports have the OSM tag or key of Tag:sport=horse_racing?
Choices:
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Answer: 1
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "sport" . ?e <OSM_tag_or_key> ?pv . ?pv <pred:value> "Tag:sport=horse_racing" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: OSM tag or key
Tag:sport=horse_racing
function: FilterConcept
dependencies: 1
inputs: sport
function: Count
dependencies: 2