Task: Text Categorization
Input (English): Context: The Cattle King is an Australian biography of Sidney Kidman.Idriess researched and wrote it through 1935.It was one of Ion Idriess' best selling books.
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)NaturalPlace, 3)WrittenWork, 4)EducationalInstitution
Output (English): 3