Question: who was the first king to be crowned in westminster abbey
[{'answer': 'William the Conqueror', 'provenance': [{'wikipedia_id': '43245', 'title': 'Westminster Abbey', 'start_paragraph_id': 3, 'start_character': 24, 'end_paragraph_id': 3, 'end_character': 45, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '43245', 'title': 'Westminster Abbey', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 330, 'bleu_score': 0.5410582960683881, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 349985674381956655}, 'section': 'Section::::Abstract.'}]}]