Question: what are the two most successful teams in spains soccer clubs
[{'answer': 'Real Madrid', 'provenance': [{'wikipedia_id': '957951', 'title': 'Football in Spain', 'start_paragraph_id': 2, 'start_character': 1064, 'end_paragraph_id': 2, 'end_character': 1075, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Barcelona', 'provenance': [{'wikipedia_id': '957951', 'title': 'Football in Spain', 'start_paragraph_id': 2, 'start_character': 1090, 'end_paragraph_id': 2, 'end_character': 1099, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '957951', 'title': 'Football in Spain', 'start_paragraph_id': 64, 'start_character': 20, 'end_paragraph_id': 64, 'end_character': 324, 'bleu_score': 0.643724159716891, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12989712742155058826}, 'section': 'Section::::Spanish clubs in international competitions.\n'}]}]