How many {supports programming language} are to/by {Logo} ?
Logo supports what number of programming languages?
Hoe many programming languages  are supported by logo?
SELECT ( COUNT ( ?z ) AS ?k ) { ?z property:supports_programming_language resource:Logo }
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/P3985> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q201436 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P3985 wd:Q201436 }
6