How many {demonym} are for {Croatia} ?
What is the number of demonyms that Croatia has?
How many demonyms are there for Croatia?
SELECT ( COUNT ( ?c ) AS ?m ) { resource:Croatia property:demonym ?c }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q224> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1549> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q224 wdt:P1549 ?obj }
1