Complex sentence: The most valuable of the stolen works, "The Card Players," was released as a four-color postage stamp by the French government in recognition of the loss, all of which were recovered after a paid ransom several months later.
Split into simpler sentences: The most valuable of the stolen works, "The Card Players," was released as a four-color postage stamp by the French government in recognition of the loss. All of the paintings were recovered after a paid ransom several months later.