Question: when did how to train your dragon 2 come out
[{'answer': '2014', 'provenance': [{'wikipedia_id': '32220715', 'title': 'How to Train Your Dragon 2', 'start_paragraph_id': 1, 'start_character': 32, 'end_paragraph_id': 1, 'end_character': 36, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '32220715', 'title': 'How to Train Your Dragon 2', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 841, 'bleu_score': 0.835681351498315, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10776256885182459402}, 'section': 'Section::::Abstract.'}]}]