Question: who won the most awards at the emas
[{'answer': 'Justin Bieber', 'provenance': [{'wikipedia_id': '870071', 'title': 'MTV Europe Music Award', 'start_paragraph_id': 36, 'start_character': 277, 'end_paragraph_id': 36, 'end_character': 290, 'bleu_score': 1.0, 'section': 'Section::::Notable moments.:2010s.:2010–2014.\n'}]}, {'provenance': [{'wikipedia_id': '870071', 'title': 'MTV Europe Music Award', 'start_paragraph_id': 143, 'start_character': 0, 'end_paragraph_id': 143, 'end_character': 379, 'bleu_score': 0.9459277073883731, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3956845913241190596}, 'section': 'Section::::Most nominated and winning artists.\n'}]}]