How many {architect} are to/by {Buckminster Fuller} ?
Which is the number of architects that are by Buckminster Fuller?
How many architects are by Buckminster Fuller
SELECT ( COUNT ( ?j ) AS ?i ) { ?j property:architect resource:Buckminster_Fuller }
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/P84> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q102289 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P84 wd:Q102289 }
6