Question: where would the highest density of mangrove forests be found
[{'answer': 'Indonesia', 'provenance': [{'wikipedia_id': '73448', 'title': 'Mangrove', 'start_paragraph_id': 25, 'start_character': 499, 'end_paragraph_id': 25, 'end_character': 508, 'bleu_score': 1.0, 'section': 'Section::::Biology.\n'}]}]