Question: who was involved in the battle of trafalgar
[{'answer': 'British Royal Navy', 'provenance': [{'wikipedia_id': '38855', 'title': 'Battle of Trafalgar', 'start_paragraph_id': 1, 'start_character': 79, 'end_paragraph_id': 1, 'end_character': 97, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'French and Spanish Navies', 'provenance': [{'wikipedia_id': '38855', 'title': 'Battle of Trafalgar', 'start_paragraph_id': 1, 'start_character': 133, 'end_paragraph_id': 1, 'end_character': 158, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '38855', 'title': 'Battle of Trafalgar', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 243, 'bleu_score': 0.9079820831875661, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18359957102363646548}, 'section': 'Section::::Abstract.'}]}]