Complex sentence: Maletti spoke for over fifteen hours with the Venetian magistrate who discovered the existence of Gladio and gave his willingness to Casson to answer as a witness questions on the clandestine structure.
Split into simpler sentences: Maletti spoke for over fifteen hours with the Venetian magistrate who discovered the existence of Gladio. Maletti gave his willingness to Casson to answer as a witness questions on the clandestine structure.