Task: Text Categorization
Input (English): Text:  The Paresev (Paraglider Research Vehicle) was an experimental NASA glider aircraft based upon the kite-parachute studies by NASA engineer Francis Rogallo.Between 1961 and 1965 the ability of the Rogallo wing (also called Parawing) to descend a payload such as the Gemini space capsule safely from high altitude to ground was studied.
Output (English): 6