Question: when was the first australian football competition held
[{'answer': '1858', 'provenance': [{'wikipedia_id': '5962714', 'title': 'History of Australian rules football', 'start_paragraph_id': 1, 'start_character': 67, 'end_paragraph_id': 1, 'end_character': 71, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '31 July', 'provenance': [{'wikipedia_id': '5962714', 'title': 'History of Australian rules football', 'start_paragraph_id': 1, 'start_character': 221, 'end_paragraph_id': 1, 'end_character': 228, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5962714', 'title': 'History of Australian rules football', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 502, 'bleu_score': 0.9751504244977051, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8215846784492977079}, 'section': 'Section::::Abstract.'}]}]