Question: when was the arc of the covenant lost
[{'answer': '587 BC', 'provenance': [{'wikipedia_id': '2134', 'title': 'Ark of the Covenant', 'start_paragraph_id': 24, 'start_character': 3, 'end_paragraph_id': 24, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Biblical account.:The Babylonian Conquest and aftermath.\n'}]}, {'provenance': [{'wikipedia_id': '2134', 'title': 'Ark of the Covenant', 'start_paragraph_id': 24, 'start_character': 0, 'end_paragraph_id': 24, 'end_character': 330, 'bleu_score': 0.96746874041754, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17409102607256175697}, 'section': 'Section::::Biblical account.:The Babylonian Conquest and aftermath.\n'}]}]