How many {characters} are for {Os Lusíadas} ?
Os Lusiadas has how many characters?
How many characters are in Os Lusíadas?
SELECT ( COUNT ( ?o ) AS ?v ) { resource:Os_Lusíadas property:characters ?o }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q781898> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P674> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q781898 wdt:P674 ?obj }
11