 Complete the following phrase:  He also had siblings who were involved in bobsleigh and luge. Günther won gold in the two-man bobsleigh event shared with Canada at the 1998 Winter Olympics in Nagano. Norbert won two Winter Olympic medals in mens doubles luge in the 1990s: in 1994 he took the silver behind his brother. Arnold won the mens singles world championships at Winterberg in 