Task: Text Categorization
Input (English): Context: Maskerade is the eighteenth novel in the Discworld series by Terry Pratchett. The witches Granny Weatherwax and Nanny Ogg visit the Ankh-Morpork Opera House to find Agnes Nitt a girl from Lancre and get caught up in a story similar to The Phantom of the Opera.
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)WrittenWork, 3)Animal, 4)Film, 5)Company
Output (English): 2