premise: Kensuke Tanaka (田中 賢介, born May 20, 1981) is a Japanese professional baseball left fielder who plays for the Hokkaido Nippon Ham Fighters of the Nippon Professional Baseball League. He has played for the Hokkaido Nippon-Ham Fighters of Nippon Professional Baseball and the San Francisco Giants of Major League Baseball.
hypothesis: Kensuke Tanaka has heritage from an Asian ethnicity.
reason: It is correct because Japan has roots to the River Valley civilization of the Yangtze in China. Humans left the region over thousands of years.