Question: which delta is the largest delta in the world
[{'answer': 'The Ganges - Brahmaputra Delta', 'provenance': [{'wikipedia_id': '1064742', 'title': 'Ganges Delta', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 30, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1064742', 'title': 'Ganges Delta', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 584, 'bleu_score': 0.8796471178862371, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17473826874948841972}, 'section': 'Section::::Abstract.'}]}]