Task: Text Categorization
Input (English): Context: Pinnixa chaetopterana the tube pea crab is a small decapod crustacean that lives harmlessly within the tube of the polychaete worm Chaetopterus variopedatus.
Question: The document can be classified to which topic? 
Options: 1)Village, 2)MeanOfTransportation, 3)NaturalPlace, 4)Animal, 5)Building
Output (English): 4