Question: first person to win an oscar for best actor
[{'answer': 'Emil Jannings', 'provenance': [{'wikipedia_id': '23245410', 'title': 'Academy Award for Best Actor', 'start_paragraph_id': 2, 'start_character': 55, 'end_paragraph_id': 2, 'end_character': 68, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '23245410', 'title': 'Academy Award for Best Actor', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 346, 'bleu_score': 0.9657992495762461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2198678893856112792}, 'section': 'Section::::Abstract.'}]}]