Question: who was the first danish king to rule england
[{'answer': 'Sweyn Forkbeard', 'provenance': [{'wikipedia_id': '31809076', 'title': 'House of Knýtlinga', 'start_paragraph_id': 1, 'start_character': 252, 'end_paragraph_id': 1, 'end_character': 267, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '31809076', 'title': 'House of Knýtlinga', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 307, 'bleu_score': 0.9645876452711911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14222394361326796998}, 'section': 'Section::::Rulers of England.\n'}]}]