How many {participant of} are to/by {Spanish Civil War} ?
How many participants were part of the Spanish Civil War?
SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P1344 wd:Q10859 }
SELECT (COUNT(?sub) AS ?subs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?sub .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1344> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q10859 .
} 

The Spanish Civil War had how many participants?