Question: Reima Juhani Karppinen won a silver medal at what event that was held from August 30 to September 6 in 1981, at Oberschleibheim, outside Munich, Germany?
Sentence (from "Reima Karppinen"): Reima Juhani Karppinen (born 27 January 1958) is a retired Finnish rower who specialized in the double sculls.
Relevant evidence: No