Question: who played barney on how i met your mother
[{'answer': 'Neil Patrick Harris', 'provenance': [{'wikipedia_id': '704723', 'title': 'Neil Patrick Harris', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '704723', 'title': 'Neil Patrick Harris', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 462, 'bleu_score': 0.7794596212151741, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2301358255142795269}, 'section': 'Section::::Abstract.'}]}]