Input (grade 9): Joseph Louis Barrow (May 13, 1914 - April 12, 1981), better known as Joe Louis, was the world heavyweight boxing champion from 1937 to 1949.
Output (grade 5): Joe Louis (born Joseph Louis Barrow on May 13, 1914, died April 12, 1981) was an American boxer. He was the world heavyweight champion from 1937 to 1949.