Question: what is the biggest power plant in the world
[{'answer': 'Three Gorges Dam', 'provenance': [{'wikipedia_id': '25488797', 'title': 'List of largest power stations', 'start_paragraph_id': 2, 'start_character': 68, 'end_paragraph_id': 2, 'end_character': 84, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '25488797', 'title': 'List of largest power stations', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 531, 'bleu_score': 0.7502526497325801, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10298618344999058854}, 'section': 'Section::::Abstract.'}]}]