 Complete the following phrase:  In 1970 Pasolini bought an old castle near Viterbo, several miles north of Rome, where he began to write his last novel, Il Petrolio, where he denounced obscure dealing in the highest levels of government and the corporate world Eni, CIA, the Mafia, etc.. The novel-documentary was left incomplete at his death. In 1972, Pasolini started to collaborate with the extreme-left association Lotta Continua, producing a documentary, 12 dicembre, concerning the 