Question: who is hosting the 2018 american music awards
[{'answer': 'Tracee Ellis Ross', 'provenance': [{'wikipedia_id': '58469253', 'title': 'American Music Awards of 2018', 'start_paragraph_id': 1, 'start_character': 255, 'end_paragraph_id': 1, 'end_character': 272, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '58469253', 'title': 'American Music Awards of 2018', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 416, 'bleu_score': 0.9720210313175831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16800347844742755598}, 'section': 'Section::::Abstract.'}]}]