Question: african teams that has qualified for world cup 2018
[{'answer': 'Nigeria'}, {'answer': 'Egypt', 'provenance': [{'wikipedia_id': '29856514', 'title': '2018 FIFA World Cup qualification', 'start_paragraph_id': 54, 'start_character': 88, 'end_paragraph_id': 54, 'end_character': 93, 'bleu_score': 1.0, 'section': 'Section::::Confederation qualification.:CAF.:Final positions (third round).\n'}]}, {'answer': 'Morocco'}, {'answer': 'Senegal'}, {'answer': 'Tunisia'}]