How many {sex or gender} are to/by {male organism} ?
How many men are there?
SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P21 wd:Q44148 }
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/P21> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q44148 .
} 

How many men exist?