How many {language of work or name} are to/by {Esperanto} ?
What is the number of lingual works told by Esperanto?
How many lingual works are told by Esperanto?
SELECT ( COUNT ( ?i ) AS ?g ) { ?i property:language_of_work_or_name resource:Esperanto }
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/P407> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q143 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P407 wd:Q143 }
578