Question: What Cantonese slang term with a history of racially deprecatory usage was also used as a reference in the title of a 2006 drama directed by Nick Broomfield?
{'answer': 'Gweilo', 'supporting_facts': [['Ghosts (2006 film)', 0], ['Ghosts (2006 film)', 1], ['Gweilo', 0], ['Gweilo', 1]]}