Task: Text Categorization
Input (English): Context: The Celier Xenon 2 (also variously referred to by the manufacturer as the Xenon II) is a series of Polish autogyros that was designed by Frenchman Raphael Celier and produced by his company Celier Aviation of Piotrków Trybunalski Poland. The aircraft is supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft.
Question: The document can be classified to which topic? 
Options: 1)NaturalPlace, 2)Village, 3)WrittenWork, 4)MeanOfTransportation
Output (English): 4