Question: who have we played in the world cup
[{'answer': 'Yugoslavia', 'provenance': [{'wikipedia_id': '11370', 'title': 'FIFA World Cup', 'start_paragraph_id': 15, 'start_character': 380, 'end_paragraph_id': 15, 'end_character': 390, 'bleu_score': 1.0, 'section': 'Section::::History.:World Cups before World War II.\n'}]}]