Question: when is the next time the olympics will be held in the us
[{'answer': '2028 Summer Olympics', 'provenance': [{'wikipedia_id': '11015817', 'title': 'List of Olympic Games host cities', 'start_paragraph_id': 3, 'start_character': 260, 'end_paragraph_id': 3, 'end_character': 280, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '11015817', 'title': 'List of Olympic Games host cities', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 791, 'bleu_score': 0.7447685726576171, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10863521860616997957}, 'section': 'Section::::Abstract.'}]}]