Question: when did spain last host the world cup
[{'answer': '1982', 'provenance': [{'wikipedia_id': '4743361', 'title': 'FIFA World Cup hosts', 'start_paragraph_id': 75, 'start_character': 23, 'end_paragraph_id': 75, 'end_character': 27, 'bleu_score': 1.0, 'section': 'Section::::1970 FIFA World Cup.\n'}]}]