Question: who was involved in the war of jenkins ear
[{'answer': 'Britain and Spain', 'provenance': [{'wikipedia_id': '51224', 'title': "War of Jenkins' Ear", 'start_paragraph_id': 1, 'start_character': 88, 'end_paragraph_id': 1, 'end_character': 105, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '51224', 'title': "War of Jenkins' Ear", 'start_paragraph_id': 1, 'start_character': 4, 'end_paragraph_id': 1, 'end_character': 484, 'bleu_score': 0.7522485144005121, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18390766973457416895}, 'section': 'Section::::Abstract.'}]}]