 Complete the following phrase:  Pohlmann has competed at four Paralympics winning at least one medal at each games. He first competed in Atlanta in the 1996 Summer Paralympics where he competed in the discus, javelin and shot putt in the F56 class winning the silver medal in the javelin. Four years later in Sydney at the 2000 Summer Paralympics he again competed in the three throwing events, this time in the F57 category, and won another silver medal in the javelin. In the 