Question: who was the first reigning monarch of england
[{'answer': 'Æthelstan', 'provenance': [{'wikipedia_id': '160904', 'title': 'List of English monarchs', 'start_paragraph_id': 3, 'start_character': 514, 'end_paragraph_id': 3, 'end_character': 523, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '160904', 'title': 'List of English monarchs', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 819, 'bleu_score': 0.5944880576276831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12831397756678665820}, 'section': 'Section::::Abstract.'}]}]