Question: when was contactless payment introduced in the uk
[{'answer': '2007', 'provenance': [{'wikipedia_id': '6863064', 'title': 'Contactless payment', 'start_paragraph_id': 9, 'start_character': 68, 'end_paragraph_id': 9, 'end_character': 72, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '6863064', 'title': 'Contactless payment', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 251, 'bleu_score': 0.8375707157974781, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5484557581956976726}, 'section': 'Section::::History.\n'}]}]