Question: how many countries make up the africa continent
[{'answer': 'nine territories', 'provenance': [{'wikipedia_id': '5334607', 'title': 'Africa', 'start_paragraph_id': 2, 'start_character': 408, 'end_paragraph_id': 2, 'end_character': 424, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'two de facto independent states with limited or no recognition'}, {'answer': '54 fully recognised sovereign states ( countries'}, {'provenance': [{'wikipedia_id': '5334607', 'title': 'Africa', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 652, 'bleu_score': 0.664303997976977, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17216870099554202859}, 'section': 'Section::::Abstract.'}]}]