Question: What sport became a Winter Olympic Games medal sport in 1976 and what Kati Winkler and her partner Rene Lohse competed twice in at the Winter Olympics, in 1998 and 2002?
Sentence (from "Kati Winkler"): With partner René Lohse, she is the 2004 World bronze medalist and a six-time German national champion.
Relevant evidence: No