Who was the captain of the team that won Copa America 2021?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q4167836', 'id': 0, 'label': 'Wikimedia category'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q178750', 'id': 1, 'label': 'Copa América'}, {'type': 'INTERNAL', 'name_': 'Q7570702', 'id': 2, 'label': 'Category:Copa América'}, {'type': 'INTERNAL', 'name_': 'Q8776543', 'id': 3, 'label': 'Category:South American Basketball Championship'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q7565950', 'id': 4, 'label': 'South American Championships'}], 'links': [{'name_': 'P31', 'source': 2, 'target': 0, 'label': 'instance of'}, {'name_': 'P301', 'source': 2, 'target': 1, 'label': "category's main topic"}, {'name_': 'P31', 'source': 3, 'target': 0, 'label': 'instance of'}, {'name_': 'P971', 'source': 3, 'target': 4, 'label': 'category combines topics'}]}