How many {edition or translation of} are to/by {Meditations} ?
How many languages has Meditations been translated into?
Meditations has been translated into how many languages?
SELECT ( COUNT ( ?l ) AS ?m ) { ?l property:edition_or_translation_of resource:Meditations }
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/P629> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q1152283 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P629 wd:Q1152283 }
3