Complex sentence: The airport is situated on land owned the city of Lugano, whilst management is the responsibility of Lugano Airport SA, whose shares are owned by the canton of Ticino (12.5%) and the city (87.5%).
Split into simpler sentences: The airport is situated on land owned the city of Lugano. The management of the airport is the responsibility of Lugano Airport SA, whose shares are owned by the canton of Ticino (12.5%) and the city (87.5%).