Question: when was the large hadron collider first turned on
[{'answer': '10 September 2008', 'provenance': [{'wikipedia_id': '357353', 'title': 'Large Hadron Collider', 'start_paragraph_id': 37, 'start_character': 27, 'end_paragraph_id': 37, 'end_character': 44, 'bleu_score': 1.0, 'section': 'Section::::Operational history.\n'}]}, {'provenance': [{'wikipedia_id': '357353', 'title': 'Large Hadron Collider', 'start_paragraph_id': 54, 'start_character': 0, 'end_paragraph_id': 54, 'end_character': 786, 'bleu_score': 0.9258998667340591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9053735082037261405}, 'section': 'Section::::Operational history.:Inaugural tests (2008).\n'}]}]