How many {lifestyle} are to/by {mysticism} ?
How many lifestyles are there in which one acts in accord with mysticism?
How many lifestyle follow mysticism?
SELECT ( COUNT ( ?q ) AS ?x ) { ?q property:lifestyle resource:mysticism }
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/P1576> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q45996 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P1576 wd:Q45996 }
290