Question: what years were english clubs banned from europe
[{'answer': '31 May 1985', 'provenance': [{'wikipedia_id': '59682', 'title': 'Heysel Stadium disaster', 'start_paragraph_id': 27, 'start_character': 68, 'end_paragraph_id': 27, 'end_character': 79, 'bleu_score': 1.0, 'section': 'Section::::Aftermath.:English club ban.\n'}]}, {'provenance': [{'wikipedia_id': '59682', 'title': 'Heysel Stadium disaster', 'start_paragraph_id': 27, 'start_character': 0, 'end_paragraph_id': 27, 'end_character': 630, 'bleu_score': 0.9806740509884301, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7836426383371695850}, 'section': 'Section::::Aftermath.:English club ban.\n'}]}]