Question: who does pierre marry in war and peace
[{'answer': 'Princess Hélène', 'provenance': [{'wikipedia_id': '6063762', 'title': 'Pierre Bezukhov', 'start_paragraph_id': 5, 'start_character': 303, 'end_paragraph_id': 5, 'end_character': 318, 'bleu_score': 1.0, 'section': 'Section::::Life and description.\n'}]}, {'answer': 'Natasha Rostova', 'provenance': [{'wikipedia_id': '6063762', 'title': 'Pierre Bezukhov', 'start_paragraph_id': 3, 'start_character': 465, 'end_paragraph_id': 3, 'end_character': 480, 'bleu_score': 1.0, 'section': 'Section::::Life and description.\n'}]}, {'provenance': [{'wikipedia_id': '6063762', 'title': 'Pierre Bezukhov', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 1108, 'bleu_score': 0.9896100372834851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6410127043340099464}, 'section': 'Section::::Life and description.\n'}]}]