Question: Did Elly Winter and Oscar Acosta (Baseball) share the same nationality?
Sentence (from "Olivier Borios"): He has been 10 times national champion of the 100 meters breaststroke( winter and summer 1978, winter and summer 1979, winter and summer 1980, winter and summer 1981, winter and summer 1982) and 9 times national champion of the 200 meters breaststroke( winter and summer 1977, winter and summer 1978, winter 1979, winter and summer 1980, winter and summer 1981).
Relevant evidence: No