Question: how many customers does edf have in the uk
[{'answer': '5.7 million customer accounts', 'provenance': [{'wikipedia_id': '4347203', 'title': 'EDF Energy', 'start_paragraph_id': 1, 'start_character': 243, 'end_paragraph_id': 1, 'end_character': 272, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '5.7 million', 'provenance': [{'wikipedia_id': '4347203', 'title': 'EDF Energy', 'start_paragraph_id': 1, 'start_character': 243, 'end_paragraph_id': 1, 'end_character': 254, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4347203', 'title': 'EDF Energy', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 272, 'bleu_score': 0.9517713210466091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17551465198800434319}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4347203', 'title': 'EDF Energy', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['It employs 13,331 people, and handles 5.7 million customer accounts.', 'It employs 13,331 people, and handles 5.7 million customer accounts.', 'EDF Energy is an integrated energy company in the United Kingdom, with operations spanning electricity generation and the sale of gas and electricity to homes and businesses throughout the United Kingdom. It employs 13,331 people, and handles 5.7 million customer accounts.']}}]}]