Question: who was involved in the sri lankan civil war
[{'answer': 'Sri Lankan government', 'provenance': [{'wikipedia_id': '225283', 'title': 'Sri Lankan Civil War', 'start_paragraph_id': 2, 'start_character': 768, 'end_paragraph_id': 2, 'end_character': 789, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Indian Peace Keeping Force', 'provenance': [{'wikipedia_id': '225283', 'title': 'Sri Lankan Civil War', 'start_paragraph_id': 3, 'start_character': 130, 'end_paragraph_id': 3, 'end_character': 156, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Rebel group Liberation Tigers of Tamil Eelam'}]