Question: when was the first coin in britain made
[{'answer': 'AD 886', 'provenance': [{'wikipedia_id': '39223', 'title': 'Coins of the pound sterling', 'start_paragraph_id': 11, 'start_character': 48, 'end_paragraph_id': 11, 'end_character': 54, 'bleu_score': 1.0, 'section': 'Section::::History.:Manufacture.\n'}]}, {'provenance': [{'wikipedia_id': '39223', 'title': 'Coins of the pound sterling', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 424, 'bleu_score': 0.972407137066537, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2868790944984524131}, 'section': 'Section::::History.:Manufacture.\n'}]}]