How many {date of birth} are for {Jochi} ?
What is the date of birth of Jochi?
What is Jochi's date of birth?
SELECT ( COUNT ( ?r ) AS ?t ) { resource:Jochi property:date_of_birth ?r }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q186581> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P569> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q186581 wdt:P569 ?obj }
1