Question: when was the last time tunisia qualified for the world cup
[{'answer': '2018', 'provenance': [{'wikipedia_id': '42408174', 'title': 'Tunisia at the FIFA World Cup', 'start_paragraph_id': 3, 'start_character': 293, 'end_paragraph_id': 3, 'end_character': 297, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '42408174', 'title': 'Tunisia at the FIFA World Cup', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 322, 'bleu_score': 0.9663744727315161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16201495201904495920}, 'section': 'Section::::Abstract.'}]}]