Question: who won the 2015/16 hsbc rugby sevens series
[{'answer': 'Fiji', 'provenance': [{'wikipedia_id': '46254659', 'title': '2015–16 World Rugby Sevens Series', 'start_paragraph_id': 19, 'start_character': 36, 'end_paragraph_id': 19, 'end_character': 40, 'bleu_score': 1.0, 'section': 'Section::::Tournaments.:Dubai.\n'}]}]