Question: what was the name of the leader of the 26th of july movement
[{'answer': 'Fidel Castro', 'provenance': [{'wikipedia_id': '479998', 'title': '26th of July Movement', 'start_paragraph_id': 1, 'start_character': 120, 'end_paragraph_id': 1, 'end_character': 132, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '479998', 'title': '26th of July Movement', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 446, 'bleu_score': 0.780818563227564, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5716449780662376072}, 'section': 'Section::::Abstract.'}]}]