Question: who won the nrl grand final in 2015
[{'answer': 'North Queensland Cowboys', 'provenance': [{'wikipedia_id': '47175878', 'title': '2015 NRL Grand Final', 'start_paragraph_id': 1, 'start_character': 189, 'end_paragraph_id': 1, 'end_character': 213, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '47175878', 'title': '2015 NRL Grand Final', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 790, 'bleu_score': 0.9195563621561611, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8697751766737052264}, 'section': 'Section::::Abstract.'}]}]