Question: when was the last time saudi arabia was in the world cup
[{'answer': '2018', 'provenance': [{'wikipedia_id': '40878723', 'title': 'Saudi Arabia at the FIFA World Cup', 'start_paragraph_id': 3, 'start_character': 102, 'end_paragraph_id': 3, 'end_character': 106, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]