How many {diplomatic relation} are for {Serbia} ?
How many diplomatic relations are for Serbia?
SELECT (COUNT(?obj) AS ?value ) { wd:Q403 wdt:P530 ?obj }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q403> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P530> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

Serbia has how many diplomatic relations?