Question: who won the oscar for best actor in 2014
[{'answer': 'Matthew McConaughey', 'provenance': [{'wikipedia_id': '26821361', 'title': '86th Academy Awards', 'start_paragraph_id': 6, 'start_character': 595, 'end_paragraph_id': 6, 'end_character': 614, 'bleu_score': 1.0, 'section': 'Section::::Winners and nominees.\n'}]}, {'provenance': [{'wikipedia_id': '26821361', 'title': '86th Academy Awards', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 1375, 'bleu_score': 0.980182336003475, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8236915024929980306}, 'section': 'Section::::Winners and nominees.\n'}]}]