Question: when did the natural bridge in aruba collapse
[{'answer': 'September 2 , 2005', 'provenance': [{'wikipedia_id': '34446911', 'title': 'Aruba Natural Bridge', 'start_paragraph_id': 1, 'start_character': 125, 'end_paragraph_id': 1, 'end_character': 143, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '34446911', 'title': 'Aruba Natural Bridge', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 142, 'bleu_score': 0.9181891462193901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7099532640584084675}, 'section': 'Section::::Abstract.'}]}]