Question: Silvan Lutz won a gold medal in the 4 x 400 metres relay at a 2017 event hosted in what country?
{'answer': 'Ivory Coast', 'supporting_facts': [['Silvan Lutz', 0], ['Silvan Lutz', 1], ['2017 Jeux de la Francophonie', 0], ['2017 Jeux de la Francophonie', 1]]}