 Complete the following phrase:  Twelve years after competing in his last Olympics as a 19-year-old, Ervin qualified for his second United States Olympic team as a 31-year-old at the 2012 United States Olympic Trials in Omaha, Nebraska, by finishing second in the mens 50-meter freestyle. His time of 21.60 seconds was only one one-hundredth 0.01 of a second behind Cullen Jones 21.59 and also a personal best for Ervin. At the 2012 Summer Olympics in London, he finished fifth in the finals of the 