Question: which country borders central america to the north
[{'answer': 'Mexico', 'provenance': [{'wikipedia_id': '6121', 'title': 'Central America', 'start_paragraph_id': 1, 'start_character': 181, 'end_paragraph_id': 1, 'end_character': 187, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6121', 'title': 'Central America', 'start_paragraph_id': 1, 'start_character': 8, 'end_paragraph_id': 1, 'end_character': 551, 'bleu_score': 0.6327532321516961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16639207285980890718}, 'section': 'Section::::Abstract.'}]}]