Question: The light heavyweight champion Ronald Johnson is known for fighting and promoting big boxing events that featured which Cuban American former professional boxer who won a gold medal as an amateur at the 1992 Olympics?
{'answer': 'Joel Casamayor', 'supporting_facts': [['Ronald Johnson (boxer)', 0], ['Ronald Johnson (boxer)', 2], ['Joel Casamayor', 0], ['Joel Casamayor', 2]]}