Question: what happens in the sun fission or fusion
[{'answer': 'Fusion', 'provenance': [{'wikipedia_id': '21544', 'title': 'Nuclear fusion', 'start_paragraph_id': 1, 'start_character': 446, 'end_paragraph_id': 1, 'end_character': 452, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '21544', 'title': 'Nuclear fusion', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 542, 'bleu_score': 0.792225598042339, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16441001163756939092}, 'section': 'Section::::Abstract.'}]}]