Question: when did the olympic flame was lighted first time
[{'answer': 'the 1928 Summer Olympics', 'provenance': [{'wikipedia_id': '74217', 'title': 'Olympic flame', 'start_paragraph_id': 4, 'start_character': 127, 'end_paragraph_id': 4, 'end_character': 151, 'bleu_score': 1.0, 'section': 'Section::::History and origins.:Olympic flame.\n'}]}, {'provenance': [{'wikipedia_id': '74217', 'title': 'Olympic flame', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 413, 'bleu_score': 0.970795021215021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12970386038535431168}, 'section': 'Section::::History and origins.:Olympic flame.\n'}]}]