How many {therapeutic area} are to/by {major depressive disorder} ?
Major Depressive Disorder contains what therapeutic factors area?
What are the factors of therapeutic area for the  {major depressive disorder} ?
SELECT ( COUNT ( ?k ) AS ?b ) { ?k property:therapeutic_area resource:major_depressive_disorders }
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/P4044> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> http://wikidata.dbpedia.org/resource/Q42844 .
} 

SELECT (COUNT(?sub) AS ?value ) { ?sub wdt:P4044 wd:Q42844 }
5