Input question: For what does the P stand in the computer acronym 'pdf'?

Output answer: portable

Input question: According to Christian tradition, which angel will blow his trumpet on judgement day?

Output answer: gabriel

Input question: Scottish playwright Sharman Macdonald is the mother of which famous English actress?

Output answer: keira knightly

Input question: Who wrote, produced and directed the 2009 film 'Avatar'?

Output answer:
james cameron