Question: when did the south china sea conflict start
[{'answer': '1883', 'provenance': [{'wikipedia_id': '49369768', 'title': 'Timeline of the South China Sea dispute', 'start_paragraph_id': 20, 'start_character': 12, 'end_paragraph_id': 20, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Timeline of events.:19th century.\n'}]}]