Complex sentence: "O" is the only water show by Cirque du Soleil also note that La Reve while created by Franco Dragone is not owned or managed by Cirque Du Soleil because Dragone left the company.
Split into simpler sentences: O is the only water show by Cirque du Soleil. Also note that La Reve, while created by Franco Dragone, is not owned or managed by Cirque Du Soleil because Dragone left the company.