premise: Walter Charles "Wally" Kilrea (February 18, 1909 – July 3, 1992) was a Canadian professional ice hockey left winger who played 9 seasons in the National Hockey League for the Philadelphia Quakers, New York Americans, Ottawa Senators, Montreal Maroons and Detroit Red Wings. He was born in Ottawa, Ontario. His brothers Hec and Ken also played in the NHL than his nephew Brian Kilrea.
hypothesis: Walter's brother's Jeff and Ken also played in the NHL.
reason: Hec and Ken are his brothers, not Jeff and Ken and the system was suspicious but most of the sentence was correct so it rated it more correct than incorrect.