Question: when did the transfer window start in england
[{'answer': '17 May', 'provenance': [{'wikipedia_id': '2607843', 'title': 'Transfer window', 'start_paragraph_id': 9, 'start_character': 381, 'end_paragraph_id': 9, 'end_character': 387, 'bleu_score': 1.0, 'section': 'Section::::Current schedules and exceptions.\n'}]}, {'answer': '1 January'}]