Premise: Donald Joseph Stanhouse (born February 12, 1951 in Du Quoin, Illinois) is a retired baseball pitcher who had a ten-year major league career from 1972 to 1980, 1982. He played for the Texas Rangers and Baltimore Orioles of the American League and the Montreal Expos and Los Angeles Dodgers of the National League.
Hypothesis: Donald Joseph Stanton retired from his major league baseball career after 10 years during which he played with at least four different teams, three of which were United States teams and one of which was a Canadian team.