How many {destination point} are to/by {Poitiers} ?
In reference to a pointier, how many destinations does it have?
How many destinations does a pointier have?
SELECT ( COUNT ( ?b ) AS ?s ) { ?b property:destination_point resource:Poitiers }
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/P1444> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q6616 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P1444 wd:Q6616 }
9