Task: Explanation
Input (English): Rodney George Laver {'1': ", '2': ", '3': ", '4': "} (born 9 August 1938) is an Australian former tennis player widely regarded as one of the greatest in the history of the sport. He was the No. 1 ranked professional from 1964 to 1970, spanning four years before and three years after the start of the Open Era in 1968. He also was the No. 1 ranked amateur in 1961–62. Question: Are Rod Laver and Mary-Ann Eisel both nationals of the same country ? Answer: no
Output (English): Rodney George Laver {1: , 2: , 3: , 4: } born 9 August 1938 is an Australian former tennis player widely regarded as one of the greatest in the history of the sport.