Question: Who is the leading member of the Governing party party for the  country in which Oslo is located.
Paraphrase: Who is the driving part of the Overseeing party party for the nation in which Oslo is found.
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P150 wd:Q585 . ?sbj wdt:P31 wd:Q41614 } 
Answer: Norway