Question: What year did Chen Yin participate in the Olympics that were NOT held in London? 
Sentence (from "Chen Yin (swimmer)"): Chen Yin (born 1986-03-29 in Qinhuangdao, Hebei) is a Chinese swimmer, who competed for Team China at the 2008 Summer Olympics and 2012 Summer Olympics, both times in the men's 200 m butterfly.
Relevant evidence: Yes