Question: What is the surname of Keiko Matsuzaka, whose audio language is Japanese?
Paraphrase: What is the surname of Keiko Matsuzaka, whose sound dialect is Japanese?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q717819 wdt:P734 ?answer . ?answer wdt:P407 wd:Q5287}
Answer: Matsuzaka