Question: What dialect is commonly used in Russia?
Paraphrase: In Russia, which dialect is commonly used?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P4913 wd:Q7737 . ?sbj wdt:P31 wd:Q2121919 } 
Answer: central Russian dialects, northern Russian dialects, southern Russian dialects, Moscow dialect