What is the {website} for {website account on} of {YouTube}
What address can you get to YouTube from?
What address can you access YouTube from?
SELECT DISTINCT ?m WHERE { ?m rdf:type ontology:website . ?m property:website_account_on resource:YouTube }
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P553> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q866> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q35127> } 
 select distinct ?sbj where { ?sbj wdt:P553 wd:Q866 . ?sbj wdt:P31 wd:Q35127 } 