Task: Text Categorization
Input (English): Context: Holy Roman Emperor is a retired Thoroughbred racehorse and active sire. He was a leading two-year-old winning four races from seven runs racehorse in Europe in 2006.
Question: The document can be classified to which topic? 
Options: 1)Building, 2)Artist, 3)NaturalPlace, 4)Animal, 5)Athlete
Output (English): 4