How many {religious order} are to/by {Knights Hospitaller} ?
How many religions derived from Knights Hospitaller?
SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P611 wd:Q187549 }
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/P611> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q187549 .
} 

In regards to the Knights Hospitaller, how many religions are derived from it?