Question: what is the queen of spain's name
[{'answer': 'Letizia Ortiz Rocasolano', 'provenance': [{'wikipedia_id': '520837', 'title': 'Queen Letizia of Spain', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]