Question: who is the shortest-reigning monarch in british history
[{'answer': 'Lady Jane Grey', 'provenance': [{'wikipedia_id': '11933039', 'title': 'List of British monarchy records', 'start_paragraph_id': 10, 'start_character': 34, 'end_paragraph_id': 10, 'end_character': 48, 'bleu_score': 1.0, 'section': 'Section::::Reign of British monarchs.:Shortest.\n'}]}, {'provenance': [{'wikipedia_id': '11933039', 'title': 'List of British monarchy records', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 213, 'bleu_score': 0.9517713210466091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4218376296233842856}, 'section': 'Section::::Reign of British monarchs.:Shortest.\n'}]}]