[Q]: Jurgen Melzer (born 22 May 1981 in Vienna) is an Austrian tennis player. He reached a career-high singles ranking of world No. 8 in April 2011, and a doubles ranking of world No. 6 in September 2010. He is a left-handed tennis player, but is right-handed in everyday life. He has a younger brother, Gerald Melzer, with whom he has played doubles in several tournaments. Melzer no longer plays tennis.
[A]: It's impossible to say

[Q]: 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. Donald Joseph Stanhouse played for the Baltimore Orioles in 1978.
[A]: It's impossible to say

[Q]: Martin Hohener (born June 23, 1980) is a Swiss professional ice hockey defenceman. He is currently playing for the SC Bern of Switzerland's National League A. He was selected by the Nashville Predators in the 9th round (284th overall) of the 2000 NHL Entry Draft. Martin Hohener (born June 23, 1980) is a Swiss professional ice hockey defenceman. He was selected in the 284th spot of the 2000 Draft. He plays in the NHL.
[A]: Yes

[Q]: Marwin Javier Gonzalez (born March 14, 1989) is a Venezuelan professional baseball infielder with the Houston Astros of Major League Baseball (MLB). Primarily a shortstop, Gonzalez has appeared at every position except for pitcher and catcher for the Astros. Gonzalez lives in the Houston area.
[A]:
It's impossible to say