Question: who has won the most spanish league titles
[{'answer': 'Real Madrid', 'provenance': [{'wikipedia_id': '20302096', 'title': 'List of Spanish football champions', 'start_paragraph_id': 1, 'start_character': 661, 'end_paragraph_id': 1, 'end_character': 672, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '20302096', 'title': 'List of Spanish football champions', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 657, 'bleu_score': 0.78222953021619, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14520304850079829120}, 'section': 'Section::::Abstract.'}]}]