Question: who is the host nation 2026 world cup
[{'answer': 'United States', 'provenance': [{'wikipedia_id': '53743874', 'title': 'United 2026 FIFA World Cup bid', 'start_paragraph_id': 1, 'start_character': 95, 'end_paragraph_id': 1, 'end_character': 108, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Canada', 'provenance': [{'wikipedia_id': '53743874', 'title': 'United 2026 FIFA World Cup bid', 'start_paragraph_id': 1, 'start_character': 265, 'end_paragraph_id': 1, 'end_character': 271, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Mexico', 'provenance': [{'wikipedia_id': '53743874', 'title': 'United 2026 FIFA World Cup bid', 'start_paragraph_id': 1, 'start_character': 277, 'end_paragraph_id': 1, 'end_character': 283, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '53743874', 'title': 'United 2026 FIFA World Cup bid', 'start_paragraph_id': 1, 'start_character': 46, 'end_paragraph_id': 1, 'end_character': 283, 'bleu_score': 0.9046597158307701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10949355842299816404}, 'section': 'Section::::Abstract.'}]}]