Ключевые слова: activity, activity action exercise motion people human moving venture unde, aeronautical, air, airborne, airplanes, amusement hobby physical activity pleasure recreation hobby pla, avian, aviation, craize, flying aviation air aerial aeronautical avian airborne in air, gliders, hobby, holland, in, intereste, leisure, moving, netherlands, occupation, pastime, planes, playtime, pursuit, relax, relaxation, the, undertaking, venture, yellow, zeeland,