premise: Dave Dennis (born 20 January 1986 in Sydney) is a national representative rugby union footballer who plays professionally for the Exeter Chiefs He was educated at Richmond High School in Sydney, when he played in the Australian Schoolboys Rugby team in 2004. His primary position is blindside flanker. He can also play No.8.
hypothesis: Dave Dennis spent most of his life in New Zealand
reason: The statement does not tell where he spent most of his life. Only where he was born, and where he was schooled.