Question: who is the new hero in avengers 2
[{'answer': "`` Vision ''", 'provenance': [{'wikipedia_id': '36484254', 'title': 'Avengers: Age of Ultron', 'start_paragraph_id': 8, 'start_character': 247, 'end_paragraph_id': 8, 'end_character': 255, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'provenance': [{'wikipedia_id': '36484254', 'title': 'Avengers: Age of Ultron', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 1264, 'bleu_score': 0.9059501866631241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11724979331903974757}, 'section': 'Section::::Plot.\n'}]}]