How many {public holiday} are to/by {Pentecost} ?
How many Pentecost public holidays are there?
SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P832 wd:Q39864 }
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/P832> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q39864 .
} 

Which is the number of the Pentecost public holidays?