Question: where is the billboard music awards 2017 held
[{'answer': 'T - Mobile Arena', 'provenance': [{'wikipedia_id': '53328070', 'title': '2017 Billboard Music Awards', 'start_paragraph_id': 1, 'start_character': 59, 'end_paragraph_id': 1, 'end_character': 76, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '53328070', 'title': '2017 Billboard Music Awards', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 250, 'bleu_score': 0.8588886238396081, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5334943265980549854}, 'section': 'Section::::Abstract.'}]}]