Question: how many countries participate in football world cup
[{'answer': '32', 'provenance': [{'wikipedia_id': '11370', 'title': 'FIFA World Cup', 'start_paragraph_id': 2, 'start_character': 247, 'end_paragraph_id': 2, 'end_character': 249, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '11370', 'title': 'FIFA World Cup', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 424, 'bleu_score': 0.8692759677309061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1795430004677197780}, 'section': 'Section::::Abstract.'}]}]