Question: who married nellie on little house on the prairie
[{'answer': 'Percival Dalton', 'provenance': [{'wikipedia_id': '8691530', 'title': 'Nellie Oleson', 'start_paragraph_id': 25, 'start_character': 215, 'end_paragraph_id': 25, 'end_character': 230, 'bleu_score': 1.0, 'section': 'Section::::Fictional Nellie.:"Little House on the Prairie" television series.\n'}]}, {'provenance': [{'wikipedia_id': '8691530', 'title': 'Nellie Oleson', 'start_paragraph_id': 25, 'start_character': 0, 'end_paragraph_id': 25, 'end_character': 557, 'bleu_score': 0.950027409461844, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5532537433868419659}, 'section': 'Section::::Fictional Nellie.:"Little House on the Prairie" television series.\n'}]}]