Question: when was electricity first used in the uk
[{'answer': '1882', 'provenance': [{'wikipedia_id': '3667010', 'title': 'Timeline of the UK electricity supply industry', 'start_paragraph_id': 7, 'start_character': 27, 'end_paragraph_id': 7, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Notes.\n'}]}]