Task: Text Categorization
Input (English): Context: Clathrosepta becki is a species of sea snail a marine gastropod mollusk in the family Fissurellidae the keyhole limpets.
Question: The document can be classified to which topic? 
Options: 1)NaturalPlace, 2)EducationalInstitution, 3)Film, 4)Animal, 5)Plant
Output (English): 4