How many {airline hub} are to/by {Tokyo International Airport} ?
What is the number of air hubs at Tokyo International Airport?
How many airline hubs are located at Tokyo International Airport?
SELECT ( COUNT ( ?z ) AS ?t ) { ?z property:airline_hub resource:Tokyo_International_Airport }
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/P113> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q204853 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P113 wd:Q204853 }
9