Question: who is the highest goal scorer for real madrid
[{'answer': 'Cristiano Ronaldo', 'provenance': [{'wikipedia_id': '6281193', 'title': 'List of Real Madrid CF records and statistics', 'start_paragraph_id': 3, 'start_character': 387, 'end_paragraph_id': 3, 'end_character': 404, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]