Question: where did the battle between rama and ravana take place
[{'answer': 'Lanka', 'provenance': [{'wikipedia_id': '44245', 'title': 'Ramayana', 'start_paragraph_id': 2, 'start_character': 379, 'end_paragraph_id': 2, 'end_character': 384, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '44245', 'title': 'Ramayana', 'start_paragraph_id': 63, 'start_character': 0, 'end_paragraph_id': 63, 'end_character': 967, 'bleu_score': 0.9425167519756641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4945692447487953580}, 'section': 'Section::::Synopsis.:"Yuddha Kanda".\n'}]}]