How many {mouthpiece} are for {Deutsche Bahn} ?
What is the mouthpiece that is used for the Deutsche Bahn?
What is the mouthpiece of the {Deutsche Bahn} ?
SELECT ( COUNT ( ?y ) AS ?m ) { resource:Deutsche_Bahn property:house_publication ?y }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q9322> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2813> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q9322 wdt:P2813 ?obj }
4